Periódicos Brasileiros em Medicina Veterinária e Zootecnia

p. 60-69

Retrospective study of neoplasms in domestic animals: a survey between 1993 and 2002 of the Service of Animal Pathology, Department of Pathology, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Southeast Brazil

átia Kátia Kátia KátiaPaula Gárate, AnaLúcia Zaidan Dagli, Maria

The incidence of neoplasia in animals is increasing, and cancer epidemiology can be considered an essential area in veterinary pathology and clinics. The aim of this study was to present a survey of neoplasia in domestic animals diagnosed at the Animal Pathology Service (Serviço de Patologia Animal SPA), Department of Pathology, School of Veterinary Medicine and Animal Science of the University of São Paulo, Brazil. Biopsy and necropsy archival specimens of the SPA were surveyed and all cases with the main diagnosis of neoplasia from 1993 to 2002 were retrieved. Animal species, breed, age, gender, location, and the histological type of neoplasm were recorded and the findings analyzed and formatted to display the epidemiological features of the tumors. A total of 12.118 biopsy and necropsy specimens were processed by the diagnostic service during this period. Among them, 1.971 cases (16%) of neoplasia were found. Most cases of neoplasia were diagnosed in canines (92%, n=1.813), followed by felines (4%, n=82), equines (3%, n=61) and bovines (1%, n=15). Cross breed was the most commonly found breed among dogs (27%, n=492) and cats (40%, n=33). Holstein (47%, n=7) and Mangalarga (28%, n=17) were the most commonly affected breeds in bovines and equines, respectively. The gender incidence of tumors was not significantly different in any species. Dogs, cats and horses were more freq

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