Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 100-104

Retrospective study of melanocytic neoplasms in dogs and cats

Teixeira, Tarso FSilva, Tereza C. daCogliati, BrunoNagamine, Márcia KDagli, Maria L. Z

mixed breed, among 8 and 11 years of age and black hair were most affected by melanocytic neoplasms. Histological types most often found were epithelioid cell melanoma mainly located in the buccal cavity, and melanocytomas, located on the skin. Among cats, females between 8 and 11 years of age of mixed breed and black hair were most often affected. Epithelioid melanoma again presented as the most common histological type, located, however, on the skin. In conclusion, this casuistic demonstrated that melanocytic neoplasms develop mostly in middle age dogs with dark hair, in the oral cavity or skin, with histological type of epithelioid cells. Melanocytic tumors are rare in cats when compared to dogs; in our cases, they were diagnosed in middle aged female cats, mostly located in skin, and with epithelioid histological type. Epidemiological data strengthen the importance of early diagnosis of melanocytic tumors in Veterinary Medicine, promoting initiation of the most appropriate therapeutical process, improving diagnosis and promoting animal welfare.(AU)

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