Features of the clinical manifestation of the cutaneous form of mastocytoma in dogs

Abstract

According to foreign researchers, mastocytoma is one of the most common (7–12 %) skin tumors in dogs. The study aimed to study the features of the clinical manifestation of cutaneous mast cells according to the criteria of the clinical TNM classification. We analyzed 24 cases of cutaneous mastocytoma in dogs during 2016–2020, of diagnostic and therapeutic measures in the Department of Surgery and Clinic of the Small Pets Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies Lviv. According to the criteria of the international clinical TNM classification at the time of admission to the clinic in 7 (29.2 %) dogs established stage I of the tumor, 10 (41.7 %) – II, 6 (25 %) – III, and 1 4.1 %) animals – stage IV. Based on cytological evaluation of biopsy material selected from tumors and regional lymph nodes of low-grade mastocytes, 17 (70.8 %) animals were found, and in 7 (29.2 %) cases, neoplasia was characterized as high-grade.