MORPHOLOGICAL TRAITS OF MAMMARY NEOPLASMS IN MOSCOW DOGS

Abstract

The paper deals with the research on mammary neoplasm occurrence in dogs performed on the basis of the Veterinary Surgery Department at the Moscow State Academy of Veterinary Medicine and Biotechnology named after K. I. Skryabin. It contains new breed and age-specific traits and morphology of mammary neoplasm in dogs in Moscow. Breed and age-specific pattern of the pathology occurrence is described too. Statistical study covers 40 cases of mammary gland neoplasm in dogs. It was found that the most frequent mammary gland neoplasms in dogs were carcinomas and adenomas at mean age of the dogs 8 ± 2.4 years, with 11 ± 1.7 years for carcinoma and 6 ± 2.6 years for adenoma. Studied neoplasms were classified by TNM type as follows: mastadenoma, simple hyperplasia and intraductal papillomatosis were of T1-3N0M0 type predominantly, while mammary carcinoma and sarcoma scored from T2-4N1-3M0 to the extreme development of neoplasm T4N3M2. The findings can be used in treatment expectations and aftereffects forecasting.