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Cytodiagnosis and the necropsy
1Department of Pathology, University of Sheffield.
Journal of Clinical Pathology
|May 1, 1995
Summary
Cytodiagnosis using direct smears is an effective, simple, and cost-efficient method for necropsy practice. This technique accurately identifies malignant neoplasms and aids in diagnosing other lesions, making it broadly applicable.
Area of Science:
- Veterinary Pathology
- Diagnostic Cytology
Background:
- Necropsy practice relies on accurate tissue assessment.
- Cytodiagnosis offers a potentially rapid diagnostic method.
Purpose of the Study:
- To evaluate the effectiveness of cytodiagnosis in necropsy settings.
- To determine the accuracy of direct smear cytology for lesion identification.
Main Methods:
- Direct smears were prepared from 53 focal lesions in 46 necropsies.
- Smears were stained using a modified Giemsa technique, with some cases supplemented by histochemistry.
- Cytological assessments were performed independently before comparison with necropsy histology.
Main Results:
- Malignant neoplasms were correctly identified in 34 out of 35 cases, with precise characterization in 14.
- Benign neoplasms were recognized in 3 out of 4 cases.
- Infectious agents were identified in 3 out of 4 infected cases, and 7 out of 10 non-neoplastic lesions were correctly diagnosed.
Conclusions:
- Direct smear cytodiagnosis is a rapid, inexpensive, and technically straightforward procedure.
- While tissue autolysis can pose challenges, experience can mitigate these difficulties.
- Necropsy cytodiagnosis is a versatile tool applicable across all necropsy examinations.