1. Feline mammary adenocarcinoma: tumor size as a prognostic indicator.
- Author
-
Viste JR, Myers SL, Singh B, and Simko E
- Subjects
- Adenocarcinoma mortality, Adenocarcinoma pathology, Adenocarcinoma surgery, Age Distribution, Animals, Canada epidemiology, Cat Diseases pathology, Cat Diseases surgery, Cats, Disease-Free Survival, Female, Mammary Glands, Animal, Mammary Neoplasms, Animal pathology, Mammary Neoplasms, Animal surgery, Neoplasm Recurrence, Local mortality, Neoplasm Recurrence, Local pathology, Prognosis, Survival Analysis, Time Factors, Adenocarcinoma veterinary, Cat Diseases mortality, Mammary Neoplasms, Animal mortality
- Abstract
Mammary carcinomas and adenocarcinomas (MACs) are relatively common tumors in cats. The postexcisional survival period of affected cats is inversely proportional to tumor size, but the reported median survival periods for different tumor size categories is quite variable. This variability diminishes the prognostic value of reported data. In our study, cats with MACs greater than 3 cm in diameter had a 12-month median survival period, whereas those with MACs less than 3 cm in diameter had a 21-month survival period. Survival periods for cats with MACs smaller than 3 cm ranged from 3 to 54 months; therefore, tumor size alone is of limited prognostic value in cats with MACs smaller than 3 cm in diameter. In cats with MACs larger than 3 cm in diameter, tumor size appears to have much higher prognostic relevance, because this study, as well as others, have indicated that cats with MACs greater than 3 cm in diameter have a poor prognosis, with median survival periods ranging from 4 to 12 months.
- Published
- 2002