MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

PRACTICAL PATHOLOGY 6 : BILHARZIASIS

A)Jars:-

Organ: Part of the large intestine

Desription:

The mucosal shows multiple polypi of variable sizes and shapes Some polypi are

o Pedunculatedo Sessileo Simpleo Branched

The intervening mucosa showso Dirty grayish yellow gritty areas of sandy patcheso Small superficial ulcers of moth eaten appearance.

Diagnosis: Bilharzial colitis.

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

Organ: Part of the large intestine

Description:

The wall of the pelvic colon and the rectum shows marked thickening excessive formation of white fibrous tissue.

The mucosa shows multiple polypio Of different size and shapeo Some are sessile, others are stalked

The mucosa in between the polypi showso Dirty yellowish-gray areas of sandy patches o Few superficial ulcerations of moth eaten appearance

Diagnosis: bilharzial mass

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

Organ: spleen

Description:

A hugely enlarged spleen. The enlargement is uniform, retaining its shape The spleen is firm in consistency, deep red in colour The capsule is thickened and grayish white due to fibrosis Patchy perisplenitis occur over areas of subcapsular haemorrhage and heals

by fibrosis forming slightly raised white pathes.

Diagnosis: Bilharzial splenomegaly.

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

B) Slides :-

Bilharzial granulomatous inflammatory reaction

Section revealed:

Several deposited both fresh and calcified bilharzial ova with surrounding granulomatous inflammatory reaction formed of epitheloid cells, lymphocytes and multinucleated giant cells mostly of the foreign body type.

Eosinophils are characteristically numerous. Lamellar fibrosis is seen surrounding the old bilharzial lesion.

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

Bilharzial polypi, colon

A polypoidal place of tissue showing.

A polypoidal piece of tissue coverd by intacgt colonic mucosal lining. The lamina propria and submucosa show several deposited both fresh and

calcified bilharzial ova. The ova are surrounded by granulomatous inflammatory reaction formed

of epithelioid cells, lymphocytes, multinucleated giant cell mostly of the foreign body type and numerous eosinophils.

©ACE 2013/14

MODULE 18 – GASTROINTESTINAL TRACT (PATHOLOGY)

©ACE 2013/14