Epidemiology of mastocytoma in dogs in a region of Mato Grosso do Sul Brazil

Abstract

Cutaneous mastocytoma is a neoplasm often seen in dogs. This disease is characterized by abnormal and excessive growth of mast cells. This study carried out the data collection of all biopsy files made in dogs in the clinical pathology laboratory of the University Center of Grande Dourados and Universidade Anhaguera Uniderp between January 2015 and January 2016. Twenty-six confirmed cases of mastocytoma From the information collected from the reports, predisposing factors such as race, sex, age and site of neoplastic lesions were evaluated. Among the selected animals, 46.2% (12) were females and 53.8% (14) males. Regarding the racial factor, 34.6% (9) of the animals had no defined race, 30.8% (8) were of the Boxer breed, 11.5% (3) were Pitbull breed, 7.7% ) Of the Labrador breed, 7.7% (2) were of the Dachshund breed, 3.8% (1) was Poodle breed and 3.8% (1) of the Shnauzer breed. It was concluded in this study that the majority of the dogs affected by this neoplasia were undefined. When considered the breed it was observed that Boxer dogs are the most predisposed to this neoplasia. Animals considered elderly, aged between 9 and 13 years are the most affected. The canine mastocytoma showed no predisposition to the disease as to sex, and it was possible to verify the higher frequency in relation to the location of the nodules in the part of the trunk and limbs.