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1 O F 30 ALL Bone M arrow and B lood 4 C olor P anelC onfiguration: Tube P urpose M arkers 1 C haracterize B cellm alignancy CD 5/CD 19/CD 45/CD10 2 Identify B cellclonality kappa/lam bda/CD45/C D19+CD 20 3 C haracterize B cellm alignancy FM C 7/C D23/CD 45/CD20 4 Identify T cellm alignacies CD 7/CD 56/CD 45/CD3 5 Identify T celland plasm a cellm alignancies CD 8/CD 38/CD 45/CD4 6 m yeloid differentiation C D 15/C D 117/C D 45/C D 34 7 m yeloid differentiation CD 16/CD13/C D45/HLA-D r 8 m yeloid differentiation CD 11b/M o2/C D45/CD 64 9 C haracterize B cellm alignancy (add on) cyTdT/CD 10/CD 45/CD34 10 C haracterize B cellm alignancy (add on) cyM u/cyC D79a/CD 45/C D34 11 D NA ploidy CD 45/P I P atientH istory: A three yearold m ale presented w ith pancytopenia. . Sam ple subm itted: A peripheralblood sam ple w as subm itted forflow cytom etric im m unophenotyping to rule outacute leukem ia. Sm allblasts w ith prom inentnucleoliand a high N /C ratio w ere seen on the sm ear.(below )

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  • 1 OF 30

    ALL

    Bone Marrow and Blood 4 Color Panel Configuration:

    TubePurposeMarkers

    1Characterize B cell malignancyCD5/CD19/CD45/CD10

    2 Identify B cell clonalitykappa/lambda/CD45/CD19+CD20

    3Characterize B cell malignancyFMC7/CD23/CD45/CD20

    4Identify T cell malignaciesCD7/CD56/CD45/CD3

    5Identify T cell and plasma cell malignanciesCD8/CD38/CD45/CD4

    6myeloid differentiationCD15/CD117/CD45/CD34

    7myeloid differentiationCD16/CD13/CD45/HLA-Dr

    8myeloid differentiationCD11b/Mo2/CD45/CD64

    9Characterize B cell malignancy (add on) cyTdT/CD10/CD45/CD34

    10Characterize B cell malignancy (add on) cyMu/cyCD79a/CD45/CD34

    11 DNA ploidy CD45/PI

    Patient History: A three year old male presented with pancytopenia.

    .

    Sample submitted: A peripheral blood sample was submitted for flow cytometric

    immunophenotyping to rule out acute leukemia. Small blasts with prominent nucleoli and a high

    N/C ratio were seen on the smear. (below)

    2 OF 30

    50060724.LMD real cells

    CD19-PE

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    50060724.LMD real cells

    CD45-ECD

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    CD5/CD19/CD45/CD10

    FS vs fluorescence no gate

    50060724.LMD real cells

    CD10-PC5

    FS

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    50060724.LMD No Gate

    FS

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    50060724.LMD real cells

    CD45-ECD

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    50060724.LMD real cells

    CD5-FITC

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    50060724.LMD real cells

    SS

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    The second plot (gated on real cells)

    is a side scatter vs CD45 plot. This

    plot allows one to distinguish major

    cell populations and obtain a "flow

    differential". Lymphocytes express

    low SS and bright CD45.

    Granuolocytes express high SS and

    bright CD45. Monocytes express

    moderate SS and bright CD45.

    Apoptotic cells, erythroid precursors

    and plasma cells are negative CD45

    and variable SS. Blasts (if present)

    are dim to negative CD45 and

    variable SS.

    Each population as defined by CD45

    and SS is painted a distinct color

    which is carried throughout the entire

    analysis layout for ease of

    recognition.

    The first plot is a forward scatter (size) vs

    sidescatter (granularity/complexity) plot. A

    gate is drawn to identify and exclude the

    "debris" which could be nonviable or

    fragmented cells (low forward scatter),

    platelets or other small particles. All

    events except debris is denoted as "real

    cells".

    Population% Classification

    Granulocytes5.29ABNORMAL

    Lymphocytes38.95NORMAL

    Monocytes0.41NORMAL

    Blasts48.55ABNORMAL

    Other47.90ABNORMAL

    The next five plots are forward

    scatter (size) vs each individual

    marker (fluorescence). This coupled

    with the specific populations in

    defined colors can provide valuable

    information about the proportions

    and contents of the sample tube.

    Notice the red lymphocyte

    population expresses some CD19

    (B cell), no CD10 and

    predominantly CD5 (T cell)

    expression. This along with the

    small size identifies a normal

    lymphoid population. The

    granulocyte and monocyte

    populations are larger (high FS) and

    negative for CD19 and not CD5.

    These serve as internal negative

    and positive controls for the

    antibodies and control that gating is

    set correctly.

    The flow differential shows a

    significant population of CD45

    dim/negative, low side scatter

    cells. This predominant

    population corresponds with

    the blasts seen on the

    smear.

    There is a decrease in the

    granulocyte component.

    3 OF 30

    50060724.LMD Lymphocytes

    CD45-ECD

    CD19-PE

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    0.00%14.97%0.00%85.03%

    50060724.LMD Lymphocytes

    CD45-ECD

    CD5-FITC

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    0.00%68.82%0.00%31.18%

    CD5/CD19/CD45/CD10

    Gated on Lymphocytes

    50060724.LMD No Gate

    FS

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    50060724.LMD real cells

    CD45-ECD

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    50060724.LMD Lymphocytes

    CD5-FITC

    CD19-PE

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    67.29%1.13%13.77%

    Marker (lymph)% lymphs

    CD10+0.99 Negative

    CD19+ 15.32Predominantly negative

    CD5+68.82 Positive

    CD19+CD5+1.13 Negative

    CD19+CD10+0.77 Negative

    50060724.LMD Lymphocytes

    CD10-PC5

    CD19-PE

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    1.84%82.84%0.77%14.55%

    50060724.LMD Lymphocytes

    CD45-ECD

    CD10-PC5

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    0.00%0.99%99.01%

    The next five plots show only the cells

    in the lymphocyte gate. CD19 is a pan B

    cell marker, CD5 is a pan T cell marker

    and CD10 is a marker present on some

    malignancies. CD19 and CD5 expression

    in normal lymphocyte populations show

    mutually exclusive populations.

    Co-expression of CD19 and CD5 (if

    present) is diagnostic for chronic

    lymphocytic leukemia (CLL).

    The summary of markers in this

    tube are gated on the lymphocyte

    population. The lymphocytes

    express some CD5 and minimal

    CD19. CD10 is not expressed.

    It is presumed these represent the

    residual normal lymphocytes in the

    sample.

    The first two plots are the gating

    plots for this tube.

    4 OF 30

    50060724.LMD Blasts

    CD10-PC5

    CD19-PE

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    61.79%1.02%37.16%0.03%

    50060724.LMD Blasts

    CD45-ECD

    CD10-PC5

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    11.20%87.87%0.02%0.90%

    50060724.LMD Blasts

    CD45-ECD

    CD19-PE

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    1.83%30.86%5.68%61.63%

    50060724.LMD Blasts

    CD45-ECD

    CD5-FITC

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    0.00%0.02%45.90%54.07%

    CD5/CD19/CD45/CD10

    Gated on dim CD45

    Marker % CD45 dim

    CD10+99.08Positive

    CD19+32.69Partially expressed

    CD5+0.02Negative

    CD19+CD5+0.01 Negative

    CD19+CD10+37.16 Partially expressed

    50060724.LMD real cells

    CD45-ECD

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    50060724.LMD Blasts

    CD5-FITC

    CD19-PE

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    0.03%66.18%0.01%33.78%

    50060724.LMD No Gate

    FS

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    The next five plots show only the cells in

    the dim CD45 gate and their respective

    marking for CD5, CD19 and CD10.

    The dim/negative CD45

    population (blasts) express the

    the B lymphoid markers CD19

    (dim) and CALLA marker CD10.

    CD19 and CD10 are

    coexpressed. The T cell marker

    CD5 is not expressed.

    The first two plots are the gating

    for this tube.

    5 OF 30

    kappa/lambda/CD45/CD19+CD20

    Gating page and FS pattern recognition

    50060723.LMD No Gate

    FS

    SS

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    50060723.LMD real cells

    CD45-ECD

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    50060723.LMD real cells

    KAPPA-FITC

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    50060723.LMD real cells

    CD45-ECD

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    50060723.LMD real cells

    LAMBDA-PE

    FS

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    50060723.LMD real cells

    CD19+CD20-PC5

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    50060723.LMD real cells

    SS

    FS

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    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can

    provide valuable information about the

    proportions and contents of the sample

    tube. In this tube thegreen CD45

    negative/dim populaton expresses

    CD19+CD20+, without kappa or lambda

    light chain expression. There is a

    portion of the lymphocytes (red) that

    express CD19+CD20+ (pan B cell

    marker). There is a significant

    lymphocyte cluster that is negative for

    CD19+CD20+. It is presumed that

    these are the T lymphocytes in the

    sample. In addition, a population of

    lymphocytes express kappa and

    lambda expression.

    These serve as internal negative and

    positive controls for the antibodies.

    The first two plots are the

    gating plots

    6 OF 30

    50060723.LMD real cells

    CD45-ECD

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    50060723.LMD Lymphocytes

    KAPPA-FITC

    CD19+CD20-PC5

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    8.24%

    50060723.LMD No Gate

    FS

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    kappa/lambda/CD45/CD19+CD20

    Gated on Lymphocytes

    50060723.LMD Lymphocytes

    LAMBDA-PE

    CD19+CD20-PC5

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    5.77%

    50060723.LMD CD19+ lymphs

    LAMBDA-PE

    KAPPA-FITC

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    57.14%0.51%39.58%

    50060723.LMD Lymphocytes

    CD19+CD20-PC5

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    CD19+ lymphs

    Marker % of lymphs

    CD19+CD20+15.02Predominantly negative

    CD19+CD20+kappa+8.24Predominanly negative

    CD19+CD20+lambda+5.77Predominantly negative

    Kappa/lambda ratio 1.43Normal

    The next four plots show only the cells

    in the lymphocyte gate. The

    combination CD19+CD20+ are a pan B

    cell marker.

    An additional gate is placed around

    these B cells (painted blue) and the

    kappa and lambda expression is

    determined on the cells only in this

    gate.

    The plots can identify a clonal excess

    of either kappa or lambda on the

    surface of B lymphocytes which

    indicates malignancy.

    The residual lymphoid population shows

    a subset of CD19+CD20+ lymphocytes

    which express a normal kappa lambda

    ratio.

    The first two plots are the

    gating plots.

    7 OF 30

    50060723.LMD Blasts

    LAMBDA-PE

    KAPPA-FITC

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    0.00%99.91%0.04%0.06%

    50060723.LMD Blasts

    CD19+CD20-PC5

    FS

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    0.00%97.64%2.36%CD19+CD20+

    50060723.LMD No Gate

    FS

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    50060723.LMD real cells

    CD45-ECD

    SS

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    50060723.LMD Blasts

    KAPPA-FITC

    CD19+CD20-PC5

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    0.41%

    50060723.LMD Blasts

    LAMBDA-PE

    CD19+CD20-PC5

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    0.48%

    Marker (dimCD45 gate)%

    CD19+CD20+91.39Positive

    CD19+CD20+Kappa+0.41Negative

    CD19+CD20+Lambda+0.48Negative

    kappa lambda ratio (dim CD45)0.85Normal

    50060723.LMD CD19+ blasts

    LAMBDA-PE

    KAPPA-FITC

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    0.10%0.18%99.51%0.21%

    kappa/lambda/CD45/CD19+CD20

    Gated on dim CD45 cells

    The first two plots are the gating plots.

    The next five plots show only the cells in

    the dim CD45 gate and their respective

    marking for CD19, CD20, CD19+CD20+

    kappa and CD19+CD20+ lambda.

    The blast population dimly

    expresses the B cell marker

    CD19+CD20+. No kappa or

    lambda light chain expression

    is present.

    The first two plots are the

    gating plots.

    8 OF 30

    FMC7/CD23/CD45/CD20

    FS vs fluorescence no gate

    50060725.LMD No Gate

    FS

    SS

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    50060725.LMD real cells

    CD45-ECD

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    50060725.LMD real cells

    20-PC5

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    50060725.LMD real cells

    23-PE

    FS

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    50060725.LMD real cells

    CD45-ECD

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    50060725.LMD real cells

    SS

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    50060725.LMD real cells

    FMC7-FITC

    FS

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    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can

    provide valuable information about the

    proportions and contents of the

    sample tube. In this tube , different B

    cell markers are used: CD20, CD23

    and FMC7. In normal lymphocytes,

    one would expect the B lymphocytes

    would express CD20, and the CD23

    and FMC7 may be partially

    expressed. Expression of CD23

    and/or FMC7 are helpful in

    characterizing B cell malignancies

    such as MCL and PLL.

    These plots continue to serve as

    gating and internal controls.

    The first two plots are the gating

    plots.

    9 OF 30

    FMC7/CD23/CD45/CD20

    Gated on Lymphocytes

    50060725.LMD No Gate

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    50060725.LMD real cells

    CD45-ECD

    SS

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    50060725.LMD Lymphocytes

    CD45-ECD

    20-PC5

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    0.00%13.69%86.31%

    50060725.LMD Lymphocytes

    23-PE

    20-PC5

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    9.13%3.96%86.10%0.80%

    50060725.LMD Lymphocytes

    FMC7-FITC

    20-PC5

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    41.59%45.32%12.40%0.70%

    50060725.LMD Lymphocytes

    CD45-ECD

    FMC7-FITC

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    90.79%0.00%9.21%0.00%

    50060725.LMD Lymphocytes

    CD45-ECD

    23-PE

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    96.29%0.00%3.71%0.00%

    50060725.LMD Lymphocytes

    FMC7-FITC

    23-PE

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    8.51%87.60%2.95%0.93%

    Marker% lymphs

    FMC7+53.98Positive

    CD20+13.69Predominantly negative

    CD23+3.71Negative

    CD20+CD23+0.02Negative

    CD23+FMC7+2.95Negative

    CD20+FMC7+12.40Predominantly negative

    The next six plots show only the cells in

    the lymphocyte gate. CD20, FMC 7 and

    CD23 are pan B cell markers. Expression

    can be used to differentiate B cell

    neoplasms such as mantle cell lymphoma,

    prolymphocytic lymphoma and chronic

    lymphocytic lymphoma.

    These residual normal

    lymphocytes partially

    express the B cell marker

    CD20, FMC 7 is

    expressed. CD23 is

    absent.

    The first two plots are the

    gating plots.

    10 OF 30

    FMC7/CD23/CD45/CD20

    Gated on CD45dim cells

    50060725.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060725.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060725.LMD Blasts

    CD45-ECD

    20-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    3.06%0.76%90.97%5.21%

    50060725.LMD Blasts

    23-PE

    20-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    2.78%0.02%97.07%0.12%

    50060725.LMD Blasts

    FMC7-FITC

    20-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.02%97.63%0.05%2.30%

    50060725.LMD Blasts

    CD45-ECD

    FMC7-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    5.91%93.97%0.06%0.06%

    50060725.LMD Blasts

    CD45-ECD

    23-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    3.27%96.67%0.01%0.05%

    50060725.LMD Blasts

    FMC7-FITC

    23-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.06%99.88%0.00%0.06%

    Marker% dim CD45

    gate

    FMC7+0.12 Negative

    CD20+3.82 Negative

    CD23+ 0.06 Negative

    The next six plots show only the cells

    in the dim CD45 gate and their

    respective marking for CD20, FMC7

    and CD23 Apoptotic cells, erythroid

    precursors and blasts will fall into this

    gate.

    The blasts in the sample do

    not express the B cell

    markers CD23, CD20 and

    FMC 7.

    The first two plots are the

    gating plots.

    11 OF 30

    50060726.LMD No Gate

    FS

    SS

    02565127681024

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    256

    512

    768

    1024

    50060726.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    CD7/CD56/CD45/CD3

    FS vs fluorescence no gate

    50060726.LMD real cells

    CD45-ECD

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    CD7-FITC

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    CD3-PC5

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    CD56-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    SS

    FS

    02565127681024

    0

    256

    512

    768

    1024

    The next five plots are forward scatter (size)

    vs each individual marker (FL). This coupled

    with the specific populations in defined colors

    can provide valuable information about the

    proportions and contents of the sample tube.

    In this tube In this tube, different T and NK

    cell markers are used: CD7, CD3 and CD56.

    In normal lymphocytes, one would expect the

    T lymphocytes to express CD7 and the CD3

    in the majority of lymphocytes. CD56 is a NK

    marker and is expected to mark a minority of

    lymphocytes. These markers are helpful in

    assessing T and NK cell malignancies.

    These plots continue to serve as gating and

    internal controls.

    The first two plots are the

    gating plots.

    12 OF 30

    CD7/CD56/CD45/CD3

    Gated on Lymphocytes

    50060726.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060726.LMD Lymphocytes

    CD45-ECD

    CD7-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.00%83.03%0.00%16.97%

    50060726.LMD Lymphocytes

    CD56-PE

    CD7-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    69.45%13.58%16.88%0.09%

    50060726.LMD Lymphocytes

    CD3-PC5

    CD56-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    13.13%0.23%17.15%69.48%

    50060726.LMD Lymphocytes

    CD7-FITC

    CD3-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    1.62%67.58%15.30%15.50%

    50060726.LMD Lymphocytes

    CD45-ECD

    CD56-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    86.03%0.00%13.97%0.00%

    50060726.LMD Lymphocytes

    CD45-ECD

    CD3-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    30.54%0.00%69.46%0.00%

    Marker% of lymphs

    CD7 (T/NK)83.03Positive

    CD56 (NK)13.97Predominantly negative

    CD3 (T)69.46Positive

    CD7+CD56+13.58Predominantly negative

    CD56+CD3+0.23Negative

    CD3+CD7+67.58Positive

    The next six plots show only the cells in

    the lymphocyte gate. The pan T cell

    markers CD3 and CD7 are expressed in

    the majority of the normal lymphocytes.

    CD56 is a natural killer cell marker.

    Please note CD3 is a lineage specific

    marker for T cells, and CD7 expresses T

    lymphocytes and NK lymphocytes.

    A small proportion of the gated

    lymphocytes express the T cell

    markers CD3 and CD7. The NK

    marker CD56 is predominantly

    negative. These represent the

    residual normal T lymphocytes in

    the sample.

    The first two plots are the gating

    plots.

    13 OF 30

    50060726.LMD Blasts

    CD7-FITC

    CD56-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.01%99.91%0.00%0.07%

    50060726.LMD Blasts

    CD3-PC5

    CD7-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.05%99.91%0.01%0.02%

    50060726.LMD Blasts

    CD45-ECD

    CD7-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    20.03%79.92%0.05%0.00%

    50060726.LMD Blasts

    CD45-ECD

    CD3-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.26%0.28%54.89%44.56%

    50060726.LMD Blasts

    CD45-ECD

    CD56-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.02%0.02%84.50%15.45%

    50060726.LMD Blasts

    CD7-FITC

    CD3-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.02%99.89%0.02%0.06%

    50060726.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060726.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    CD7/CD56/CD45/CD3

    Gated on dim CD45 cells

    Marker% of dim

    CD45

    CD7+0.05Negative

    CD56+0.05Negative

    CD3+0.54Negative

    The next six plots show only the

    cells in the dim CD45 gate and

    their respective marking for the T

    cell markers CD3, CD7 and and the

    natural killer marker CD56. CD7

    also marks NK cells and can be

    seen in a subset of AMLs.

    These markers can assist in

    diagnosis of T and NK cell ALL.

    The blasts in the sample do

    not express the T cell

    makers CD7 and CD3; or

    the NK marker CD56.

    The first two plots are the gating

    plots.

    14 OF 30

    CD8/CD38/CD45/CD4

    FS vs fluorescence no gate

    50060727.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD4-PC5

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD45-ECD

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD38-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD8-FITC

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    SS

    FS

    02565127681024

    0

    256

    512

    768

    1024

    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can

    provide valuable information about the

    proportions and contents of the sample

    tube. In this tube, different T cell

    subset (CD4 and CD8) and the

    activation marker CD38 are used In

    normal lymphocytes, one would expect

    the CD4 and CD8 expression of

    lymphocytes to mark mutually

    exclusive populations. The sum of the

    CD4 + CD8 expression should add up

    to the total CD3 population (prior tube).

    These markers are helpful in assessing

    T cell cell malignancies and identifying

    activated cells.

    These plots continue to serve as gating

    and internal controls.

    The first two plots are the gating

    plots.

    15 OF 30

    CD8/CD38/CD45/CD4

    Gated on Lymphocytes

    50060727.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD Lymphocytes

    CD4-PC5

    CD38-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    36.75%36.95%12.68%13.61%

    50060727.LMD Lymphocytes

    CD8-FITC

    CD4-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    40.26%0.41%31.78%27.56%

    50060727.LMD Lymphocytes

    CD8-FITC

    CD38-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    56.61%17.10%14.48%11.81%

    50060727.LMD real cells

    CD38-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    plasma cells=0.60

    Marker (lymph gate)%

    CD38+73.70Positive

    CD4+40.66Partially expressed

    CD8+28.91Partially expressed

    CD4+/CD8+ ratio1.46Normal

    bright CD38+ (Plasma Cells)0.60Normal

    Plasma cells brightly express CD38.

    In the FS vs CD38 plot one can

    estimate the plasma cell population.

    If more than 0.5-1% of the population

    is CD38 bright, additional studies

    such as CD138, CD56, CDD117,

    cytoplasmic Kappa and cytoplasmic

    Lambda may be added to further

    characterize the plasma cells.

    The next three plots show only the

    cells in the lymphocyte gate. The

    lymphocyte subset markers CD4

    and CD8. The activation cell marker

    CD38 is assessed on lymphocytes

    and the respective lymphocyte

    subset.

    Plasma cells, if present in the

    sample, will express very bright

    CD38. In the last plot, we screen for

    plasma cells by gating on only

    those CD38+ cells that fall into the

    fourth decade of fluorescent

    intensity.

    The gated lymphocytes

    express the mutually exclusive

    CD4 and CD8 populations The

    CD4/CD8 ratio is normal .

    These represent the residual

    normal T lymphocytes in the

    sample.

    The activation marker CD38 is

    expressed on the lymphocytes.

    Plasma cells (bright CD38) are

    below 1%.

    The first two plots are the gating

    plots.

    16 OF 30

    CD8/CD38/CD45/CD4

    Gated on dim CD45 cells

    50060727.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060727.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060727.LMD Blasts

    CD45-ECD

    CD38-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    14.01%63.87%6.14%15.99%

    50060727.LMD Blasts

    CD45-ECD

    CD4-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.05%0.23%23.22%76.50%

    50060727.LMD Blasts

    CD45-ECD

    CD8-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.00%0.02%36.71%63.27%

    Marker% of dim

    CD45 cells

    CD40.28Negative

    CD80.02Negative

    CD4/CD8 ratio 11.50 Abnormal

    CD4+CD8+0.00Negative

    CD38+ 77.87Positive

    50060727.LMD Blasts

    CD8-FITC

    CD4-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.02%99.70%0.00%0.28%

    The next four plots show only the

    cells in the dim CD45 gate and their

    respective marking for CD4, CD8

    and CD38

    If blasts are present, these markers

    can help identify and characterize T

    cell malignancies.

    The blasts in the sample

    express the activation

    marker CD38. The T

    helper/T suppressor

    markers CD4 and CD8 are

    not expressed.

    The first two plots are the

    gating plots.

    17 OF 30

    CD15/CD117/CD45/CD34

    FS vs fluorescence no gate

    50060728.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    CD45-ECD

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    34 PC5

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    15-FITC

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    CD117-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    SS

    FS

    02565127681024

    0

    256

    512

    768

    1024

    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can provide

    valuable information about the

    proportions and contents of the sample

    tube. In this tube, different myeloid and

    maturation markers are used: CD15,

    CD117, and CD34. These markers are

    helpful in assessing myeloid cell

    malignancies and determining levels of

    cell maturation. Note that the lymphoid

    population is negative for these markers,

    but that the myeloid population (blue)

    expresses the CD15 marker (which

    marks more mature myeloid cells such

    as granulocytes)

    .

    These plots continue to serve as gating

    and internal controls.

    The first two plots are the

    gating plots.

    18 OF 30

    CD15/CD117/CD45/CD34

    Gated on Granulocytes (QC)

    50060728.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060728.LMD Granulocytes

    CD45-ECD

    34 PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    94.86%0.00%5.14%0.00%

    50060728.LMD Granulocytes

    15-FITC

    34 PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.49%3.18%0.37%95.96%

    50060728.LMD Granulocytes

    CD117-PE

    34 PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    1.35%0.37%98.29%0.00%

    50060728.LMD Granulocytes

    CD117-PE

    15-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

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    0

    10

    1

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    98.53%0.12%1.22%0.12%

    50060728.LMD Granulocytes

    CD45-ECD

    CD117-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    3

    10

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    99.63%0.00%0.37%0.00%

    50060728.LMD Granulocytes

    CD45-ECD

    15-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    10

    4

    0.00%99.02%0.00%0.98%

    Marker% granulocytes

    CD341.71Predominantly negative

    CD1599.02Positive

    CD1170.37Negative

    This page serves more as a quality

    control for the myeloid markers.

    Normal granulocytes (blue) will normally

    express CD15 and very little CD117 and

    CD34. These plots can serve as quality

    controls for both gating and antibody

    reactivity.

    Residual normal granulocytes

    are marking as expected.

    19 OF 30

    CD15/CD117/CD45/CD34

    Gated on dim CD45 cells

    50060728.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060728.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

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    0

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    50060728.LMD Blasts

    CD45-ECD

    34 PC5

    10

    0

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    0

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    4

    14.18%2.64%71.65%11.53%

    50060728.LMD Blasts

    15-FITC

    34 PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    3

    10

    4

    79.68%1.04%19.07%0.20%

    50060728.LMD Blasts

    CD117-PE

    34 PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

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    0

    10

    1

    10

    2

    10

    3

    10

    4

    83.18%0.50%0.05%

    50060728.LMD Blasts

    CD117-PE

    15-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    1.50%0.02%97.95%0.53%

    50060728.LMD Blasts

    CD45-ECD

    CD117-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    3

    10

    4

    42.83%56.63%0.53%0.01%

    50060728.LMD Blasts

    CD45-ECD

    15-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.83%0.68%44.48%

    Marker% blasts

    CD3483.18Positive

    CD151.52Negative

    CD1170.53Negative

    The next six plots show only the cells

    in the dim CD45 gate and their

    respective marking for CD15, CD117

    and CD34

    If blasts are present, these markers

    can help assess myeloid malignancy.

    The blasts in the sample

    express the stem cell

    marker CD34. CD117 and

    CD15 are not expressed.

    20 OF 30

    CD16/CD13/CD45/HLA-DR

    FS vs fluorescence no gate

    50060729.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

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    2

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    3

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    4

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    CD45-ECD

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    HLA-DR-PC5

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    CD16-FITC

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    CD13-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can

    provide valuable information about the

    proportions and contents of the sample

    tube. In this tube, different myeloid and

    maturation markers are used: HLA-Dr,

    CD13, and CD16. These markers are

    helpful in assessing myeloid cell

    malignancies and determining levels of

    cell maturation. Note that the

    lymphoid population is negative for

    these markers, but that the myeloid

    population (blue) expresses the CD13

    and CD16 marker (which marks more

    mature myeloid cells such as

    granulocytes). HLA Dr is a marker of

    immaturity and is negative for the

    normal granulocytes in this sample.

    .

    These plots continue to serve as

    gating and internal controls.

    The first two plots are the gating

    plots.

    50060729.LMD real cells

    SS

    FS

    02565127681024

    0

    256

    512

    768

    1024

    21 OF 30

    50060729.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

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    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060729.LMD Granulocytes

    CD45-ECD

    CD16-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.00%84.22% 15.78%

    CD16/CD13/CD45/HLA-DR

    Gated on Granulocytes (QC)

    50060729.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060729.LMD Granulocytes

    CD16-FITC

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    4

    3.86% 84.79%10.16%

    50060729.LMD Granulocytes

    CD45-ECD

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.00%96.17% 3.83%

    Marker% of

    granulocytes

    CD1396.17Positive

    HLA DR 3.82 Negative

    CD1684.22 Positive

    50060729.LMD Granulocytes

    CD45-ECD

    HLA-DR-PC5

    10

    0

    10

    1

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    2

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    3

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    0

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    4

    0.00%3.82% 96.18%

    50060729.LMD Granulocytes

    HLA-DR-PC5

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    90.46%4.32% 0.42%

    This page serves as a quality control

    for the myeloid markers.

    Normal granulocytes (blue) will

    normally express CD13 and CD16.

    HLA DR is not expressed on mature

    granulocytes. These plots can serve as

    quality controls for gating and antibody

    reactivity.

    Residual normal granulocytes

    are marking as expected

    22 OF 30

    CD16/CD13/CD45/HLA-DR

    Gated on dim CD45 cells

    50060729.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060729.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060729.LMD Blasts

    CD45-ECD

    CD16-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    20.17%79.63%0.11%0.10%

    50060729.LMD Blasts

    CD16-FITC

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    1.46%0.02%98.33%0.19%

    50060729.LMD Blasts

    CD45-ECD

    HLA-DR-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    12.44%4.74%59.64%23.19%

    50060729.LMD Blasts

    HLA-DR-PC5

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    81.62%14.91%2.53%0.94%

    50060729.LMD Blasts

    CD45-ECD

    CD13-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    57.51%42.04%0.42%0.03%

    Marker% of dim CD45

    CD130.45Negative

    HLA DR 84.15Positive

    CD160.11 Negative

    The next five plots show only the cells in the

    dim CD45 gate and their respective marking

    for HLA Dr, CD13 and CD16

    If blasts are present, these markers can

    help assess myeloid malignancy and

    immaturity.

    The blasts in the sample

    express HLA DR. The myeloid

    markers CD13 and CD16 are

    negative.

    The first two plots are the gating

    plots.

    23 OF 30

    CD11b/MO2/CD45/CD64

    FS vs fluorescence no gate

    50060730.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    CD11b-FITC

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    Mo2-PE

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    CD45-ECD

    FS

    10

    0

    10

    1

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    2

    10

    3

    10

    4

    0

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    768

    1024

    50060730.LMD real cells

    CD64-PC5

    FS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    %

    50060730.LMD real cells

    SS

    FS

    02565127681024

    0

    256

    512

    768

    1024

    The next five plots are forward scatter

    (size) vs each individual marker (FL).

    This coupled with the specific

    populations in defined colors can

    provide valuable information about the

    proportions and contents of the

    sample tube. In this tube, different

    myeloid/monocytoid markers are

    used: CD11b, CD64, and Mo-2.

    These markers are helpful in

    assessing or differentiating

    myeloid/monocytoid cell

    malignancies. Note that the lymphoid

    population is negative for these

    markers, but that the myeloid

    population (blue) and monocyte

    population (purple) expresses

    CD11b. The CD64 and Mo-2 are only

    expressed on the monocyte

    population.

    .

    These plots continue to serve as

    gating and internal controls.

    The first two plots are the gating

    plots.

    24 OF 30

    CD11b/MO2/CD45/CD64

    Gated on Granulocytes (QC)

    50060730.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

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    3

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    768

    1024

    50060730.LMD Granulocytes

    CD45-ECD

    CD64-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    34.25%0.00%65.75%0.00%

    50060730.LMD Granulocytes

    CD45-ECD

    CD11b-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    3.88%0.00%96.12%0.00%

    50060730.LMD Granulocytes

    CD64-PC5

    Mo2-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    10

    4

    63.75%36.17%0.08%0.00%

    50060730.LMD Granulocytes

    CD45-ECD

    Mo2-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    10

    4

    99.81%0.00%0.19%0.00%

    50060730.LMD Granulocytes

    CD11b-FITC

    CD64-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    35.57%0.90%58.44%5.09%

    50060730.LMD Granulocytes

    Mo2-PE

    CD11b-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

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    3

    10

    4

    0.04%4.60%0.04%95.33%

    Marker% of

    Granulocytes

    CD11b96.12Positive

    CD6465.75Positive

    Mo2 (monos)23.05Partially expressed

    These plots serve as a quality control

    for granulocyte and monocyte markers.

    Normal granulocytes (blue) will

    normally express CD11b and CD64.

    Mo2 is expressed only on monocytes,

    but not on granulocytes. These plots

    can serve as quality controls for gating

    and antibody reactivity.

    50060730.LMD Monocytes

    CD64-PC5

    Mo2-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    2.34%23.05%47.66%

    This plot serve as a quality

    control for Mo 2 and CD64.

    As shown monoctes are

    positive for these two

    markers.

    Residual normal granulocytes

    are marking as expected.

    25 OF 30

    CD11b/MO2/CD45/CD64

    Gated on dim CD45 cells

    50060730.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060730.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060730.LMD Blasts

    CD45-ECD

    Mo2-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    29.61%70.29%0.05%0.05%

    50060730.LMD Blasts

    CD45-ECD

    CD11b-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    2.81%97.04%0.06%0.10%

    50060730.LMD Blasts

    CD64-PC5

    CD11b-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

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    10

    3

    10

    4

    1.17%98.57%0.02%0.24%

    50060730.LMD Blasts

    CD45-ECD

    CD64-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    24.36%74.32%0.39%0.94%

    50060730.LMD Blasts

    Mo2-PE

    CD64-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.14%99.60%0.00%0.26%

    50060730.LMD Blasts

    Mo2-PE

    CD11b-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.14%99.75%0.00%0.11%

    Marker% of dim CD45

    CD11b0.16Negative

    CD641.32Negative

    Mo20.10Negative

    The next six plots show only the cells in

    the dim CD45 gate and their respective

    marking for the myeloid and monocytoid

    markers CD11b, CD64 and Mo-2

    If blasts are present, these markers can

    help assess and differentiate myeloid and

    monocytoid malignancy .

    The blasts do not express the

    myeloid/monocytoid markers

    CD11b, CD64 and Mo2.

    The first two plots are the

    gating plots.

    26 OF 30

    50060746.LMD Blasts

    CD45-ECD

    cy79A-PE

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    7.99%86.62%0.69%4.69%

    50060746.LMD Blasts

    CD45-ECD

    cyMu-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    3.14%0.20%95.01%1.65%

    50060746.LMD No Gate

    FS

    SS

    02565127681024

    0

    256

    512

    768

    1024

    50060746.LMD real cells

    CD45-ECD

    SS

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0

    256

    512

    768

    1024

    50060746.LMD Blasts

    cy79A-PE

    CD34-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    1.59%68.65%3.20%26.56%

    50060746.LMD Blasts

    cy79A-PE

    cyMu-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    0.43%4.49%5.05%90.02%

    50060746.LMD Blasts

    CD34-PC5

    cyMu-FITC

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    2.74%1.49%28.11%67.66%

    50060746.LMD Blasts

    CD45-ECD

    CD34-PC5

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    10

    0

    10

    1

    10

    2

    10

    3

    10

    4

    6.21%66.24%2.11%25.44%

    cyMu/cyCD79a/CD45/CD34

    Gated on dim CD45 cells

    The next six plots show only the cells in

    the dim CD45 gate and their respective

    marking for the cytoplasmic Mu,

    cytoplasmic CD79a and CD34. CD79a is

    a lineage specific marker for B lymphoid

    cells. cyMu identifies a subset of B

    lymphoid cells.

    If blasts are present, these markers can

    help assess and differentiate B lymphoid

    cells. .

    The blasts express the B

    lymphoid marker cyCD79a and

    CD34. The cytoplasmic Mu is

    not expressed.

    Marker% of dim CD45

    cyMu3.34 Negative

    cyCD79a94.62 Positive

    CD3472.45 Positive

    27 OF 30

    50060752.LMD Blasts

    CD45-ECD

    CD10- PE

    10

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    9.50%85.53%0.60%4.36%

    50060752.LMD Blasts

    CD45-ECD

    cyTdT-FITC

    10

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    11.89%78.54%1.79%7.77%

    50060752.LMD No Gate

    FS

    SS

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    50060752.LMD real cells

    CD45-ECD

    SS

    10

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    50060752.LMD Blasts

    CD10- PE

    CD19-PC5

    10

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    10

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    0

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    2.27%80.81%2.87%14.05%

    50060752.LMD Blasts

    CD10- PE

    cyTdT-FITC

    10

    0

    10

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    3.23%86.07%2.99%7.71%

    50060752.LMD Blasts

    CD19-PC5

    cyTdT-FITC

    10

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    13.87%66.41%8.61%11.12%

    50060752.LMD Blasts

    CD45-ECD

    CD19-PC5

    10

    0

    10

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    15.54%63.54%3.83%17.10%

    cyTdT/CD10/CD45/CD19

    Gated on dim CD45 cells

    The next six plots show only the cells in

    the dim CD45 gate and their respective

    marking for the cytoplasmic TdT, CD10

    and CD19. TdT marks B lymphoblasts

    (and some myeloblasts). CD10 marks the

    CALLA (common acute lymphoblastic

    leukemia antigen)

    If blasts are present, these markers can

    help assess and differentiate

    lymphoblastic leukemia. .

    The blasts express TdT, CD10

    and CD19. TdT is coexpressed

    on both the CD19 and CD10

    cells.

    Marker% of dim CD45

    cyTdT90.44 Positive

    cyTdT+CD10+86.07 Positive

    cyTdT+CD19+66.41 Positive

    28 OF 30

    50060724.LMD real cells

    CD45-ECD

    SS

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    50060723.LMD real cells

    CD45-ECD

    SS

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    50060725.LMD real cells

    CD45-ECD

    SS

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    50060726.LMD real cells

    CD45-ECD

    SS

    10

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    50060727.LMD real cells

    CD45-ECD

    SS

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    50060728.LMD real cells

    CD45-ECD

    SS

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    50060729.LMD real cells

    CD45-ECD

    SS

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    50060730.LMD real cells

    CD45-ECD

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    Tube 1-8 SS vs CD45 pattern QC

    Tube #Total eventsReal cellsDebrisGranulocytesLymphocytesBlasts

    127238258335.165.2938.9548.55

    226769254185.055.1539.0333.50

    327579262414.855.3738.3731.62

    427733262785.255.8038.9130.73

    527702261695.535.5938.6340.08

    626966256085.043.1939.8648.55

    71872881777055.125.3138.3333.42

    854186513915.165.1637.4833.08

    This page displays the CD45 vs

    SS plots for each of the 8 tubes of

    the panel. review of the number of

    events counted in each tube and

    the placement and proportions of

    each of the populations serve as a

    QC parameter.

    29 OF 30

    50060731.LMD lymphocyteDNA

    D N A

    Count

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    # of events = 10818

    50060731.LMD singlicates

    CD45 LOG

    SS

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    Cell cycle tube

    50060731.LMD No Gate

    D N A

    RATIO

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    singlicates

    50060731.LMD blastDNA

    D N A

    Count

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    # of events =45463

    50060731.LMD singlicates

    D N A

    Count

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    300

    400

    # of events = 59795

    DNA ploidy and S-phase fraction can

    be a useful tool in assessing

    hematologic malignancies.

    The first plot is the ratio of peak vs

    area, of the FL3 linear cell

    fluorescence as it traverses the laser

    spot. We have gated out any doublets

    that may interfere with the analysis.

    Doublets are cells that stick together

    and give a false signal of twice the DNA

    content.

    The second plot allows us to select

    different populations to assess the DNA

    content. DNA content of the singlicate

    gat includes both the normal

    lymphocytes (that serve as a diploid

    control) and the abnormal population.

    The subsequent single parameter

    histograms assess the DNA histogram

    of the selected populations. In this case

    all population show a normal diploid

    histogram. Accurate S-phase can only

    be assessed in cases with > 20,000

    events.

    The "flow differential" in this

    specimen shows a bright CD45

    (normal ymphoid population) and a

    dim CD45 (blast) population.

    Additional DNA studies using an

    appropriate antibody in FITC (CD19

    or CD20) vs DNA can provide more

    specific data.

    In this case the normal

    lymphocytes serve as the diploid

    control. The blasts are aneuploid

    (hypodiploid). The S-phase fraction

    appear high. Further analysis is

    need to determine DNA statistics.

    DNA index 0.53Aneuploid

    30 OF 30

    ParameterLymphocyte

    gate

    (dim/neg)

    CD45 gate

    Granulocyte

    gate

    CD19+CD20+17.11Pred. Neg91.39PosNANA

    CD19+CD20+kappa+ 8.24Pred. Neg0.41 NegNANA

    CD19+CD20+lambda+5.77Pred. Neg0.48NegNANA

    kappa/lambda ratio1.43Normal0.85NormalNANA

    CD10+2.60Neg99.08 PosNA NA

    CD19+14.90Pred. Neg32.69 PartialNA NA

    CD5+68.82Pos0.02 NegNA NA

    CD19+CD10+0.77Neg37.16PartialNA NA

    CD19+CD5+1.13Neg0.01NegNA NA

    FMC7+53.98Pos0.07NegNA NA

    CD20+13.69Pred. Neg3.82NegNA NA

    CD23+4.77Neg0.14NegNA NA

    CD7+83.03Pos0.04NegNA NA

    CD56+13.67Pred. Neg0.07NegNA NA

    CD3+69.20Pos0.06NegNA NA

    CD3+CD7+67.58Pos0.01NegNA NA

    CD4+40.66Partial0.28NegNA NA

    CD8+27.97Partial0.02NegNA NA

    CD4/CD8 ratio1.46Normal11.50 AbnormalNA NA

    CD38+73.70Pos77.87PosNA NA

    CD38+ bright (PC)0.60NormalNA NANA NA

    CD4+CD8+0.41 Neg0.00NegNA NA

    CD11b+NA NA0.16Neg96.12Pos

    CD64+NA NA1.19Neg65.75Pos

    Mo2+NA NA0.10Neg0.08Neg

    CD13+NA NA1.48Neg94.95Pos

    HLA DR+NA NA84.15Neg3.82Neg

    CD16+NA NA0.21Neg88.65Pos

    CD34+NA NA83.18Pos1.71Neg

    CD15+NA NA1.52Neg99.14Pos

    CD117+NA NA0.55Neg0.37Neg

    Population%

    Granulocyte5.29Abnormal

    Lymphocyte38.95Normal

    dim CD45 cells (apoptotic cells or blasts) 48.55Abnormal

    Monocyte0.41Normal

    negative CD45 cells (apoptotic cells, erythroid

    precursor, blasts, or plasma cells)

    47.90Abnormal

    Summary of Statistics

    This page is a summary of the

    statistics on this case.

    A dim/negative CD45, low SSC

    population expresses the B

    lymphoid markers CD19 (dim)

    and CD10. HLA Dr, CD34 and

    CD38 are also expressed. CD20,

    CD23, FMC-7 nor kappa/lambda

    light chains are expressed.

    Myeloid, monocytoid and T

    lymphoid markers are not

    expressed.

    Additional studies showed

    cytoplasmic TdT, cytoplasmic

    CD79a are also expressed on the

    blasts.

    This is most consistent with a

    Pre-B Acute lymphoblastic

    leukemia (ALL)

    DNA content of the blasts is

    aneuploid (hypodiploid) with a

    high S-phase fraction.

    The lymphocyte population

    expresses a normal phenotype,

    predominantly T cells with a

    normal CD4/CD8 and B cells with

    a normal kappa/lambda ratio.The

    granulocytes in the sample

    express a normal phenotype. This

    serves as an internal control.

    The "flow differential" identifies a

    predominant dim/negative CD45

    low SSC population, and a

    decreased granulocyte

    population. The proportion of

    lymphocytes is normal.