Characteristics of Canine Melanomas and Comparison of Histology and DNA Ploidy to Their Biologic Behavior
1990
Bolon, B. | Mays, M. B Calderwood | Hall, B. J.
The biologic behavior of 179 formalin-fixed, paraffin-embedded canine melanomas was correlated with their histologic appearance. In addition, flow cytometric analysis of DNA content was performed on 54 of these tumors. Histologic examination accurately predicted clinical course in 89% of the melanomas with known behavior. Flow cytometry accurately predicted behavior in 93% of tumors with diagnostic histograms and demonstrated malignant features in 100% of metastases from malignant oral tumors; histograms were nondiagnostic for 15% of tumors tested. Histologic examination, flow cytometry, and biologic behavior were in agreement for 93% of the tumors with diagnostic histograms. Interpretive problems were encountered in analyzing heavily pigmented melanomas using this flow cytometery technique.
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