HEMANGIOSSARCOMA EM UM CÃO DA RAÇA PINSCHER: ASPECTOS CLÍNICOS E PATOLÓGICOS

Hemangiosarcoma (HSA) is a malignant, invasive and undifferentiated tumor of the endothelium of blood vessels, with metastatic capacity, and is more common in dogs. It is a neoplasm that is both genetic and predisposed to breeds such as the German Shepherd, Golden Retriever and Labrador Retriever. However, dogs that are more exposed to sunlight are also predisposed, especially those with light coats. This course conclusion paper aims to report a case of hemangiosarcoma in a pinscher dog. He was treated at the veterinary clinic of the Campos Gerais Faculty of Science and Technology, a 9-year-old pinscher who had a lump in the inguinal region near his penis. During the evaluation, it was proposed that material be collected for blood count, blood biochemistry and cytological evaluation. For cytological assessment, the animal was submitted to the capillary technique, and microscopic evaluation revealed cells with an ovoid to fusiform appearance, with intense pleomorphism, anisokaryosis and basophilic cell cytoplasm, with evident nucleoli and anisonucleolysis. Intense amounts of red blood cells were also seen at the bottom of the slide, as well as neutrophilic cells, and the final diagnosis was suggestive of hemangiosarcoma. The animal underwent ultrasound to check for metastasis, which was not observed. He was then submitted to nodulectomy in order to send the material for histopathology. The histopathological examination confirmed the cytological report, showing dermal hemangiosarcoma. This study is important for the scientific community, since cutaneous hemangiosarcoma in pinscher dogs is rare, contributing to other researchers and clinical veterinarians and pathologists.