Pathology diagnosis

Diagnosis a concise statement or conclusion

concerning the nature, cause, or name of a disease.

(note: the accuracy of a diagnosis is limited by the evidence available for

study)

Differential Diagnosis (“rule-outs”)

• A list of diagnoses that could account for the history, clinical signs or lesions in a case.

Clinical Diagnosis

• Diagnosis based on data obtained from the case history, clinical signs, and physical examination.

Morphologic Diagnosis (lesion diagnosis)

• A diagnosis based on the predominant lesion(s) in the tissue.

• it may be macroscopic (gross) or microscopic (histologic) and describes the severity, duration,

• distribution, location and nature (eg degenerative, inflammatory, neoplastic) of the lesion.

• eg. severe, acute, locally-extensive, fibrinous bronchopneumonia.

Morphologic Diagnosis (lesion diagnosis)

Etiologic Diagnosis

• a definitive diagnosis that names the specific cause of the disease.

Disease (Definitive) Diagnosis

• a specific diagnosis that states the “name of the disease”.

Anatomic Terminology

• ORGAN + OPATHY (disease of an organ; the etiology / pathogenesis is not entirely clear).

• Hepatopathy - any disease of the liver.• Nephropathy - any disease of the kidney.

Anatomic Terminology

• ORGAN + OSIS (noninflammatory disease of an organ, often used if degeneration / necrosis)

• e.g. Hepatosis - esp. when degeneration &/or necrosis of hepatocytes.

• Nephrosis - esp. when degeneration &/or necrosis of tubules.

Anatomic Terminology

• ORGAN + ITIS (an inflammatory disease of the organ).

• Hepatitis - inflammation of the liver.• Nephritis - inflammation of the kidney.• Lung + itis = ?

Anatomic Terminology

pneumonia is the term typically used for inflammation of the lung, not "pneumonitis“ or lungitis

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