Small animal oncology: giving clients a more accurate prognosis

Mitotic index as a prognostic indicator for some common tumours Tumour Mitotic index Outcome (median survival time) Reference Canine cutaneous mast cell tumours ≤6 ≥7 (part of Kiupel high-grade criteria) ≤5 >5 More than two years Less than four months 70 months Two months 2 3 Canine renal carcinoma 30 1184 days 452 days 187 days 4 Canine cutaneous melanoma 4 Associated with death within one year of diagnosis (sensitivity 90.3%, specificity 84.4%) 5 Canine cutaneous soft tissue sarcomas