Sertolioma em azulão(Cyanocompsa brissonii - Relato de caso

Abstract

Sertoliomas are supporting cell neoplasms within the seminiferous tubules. Where they are expansive and can cause drastic enlargement of the affected testicle, but metastases are very rare. Testicular neoplasms are uncommon in birds. Such neoplasms are more described in parrots than in passerines, and in Brazil there are still no reports involving ultramarine grosbeak (Cyanocompsa brissonii). Therefore, the objective was to describe the clinical, radiographic and anatomopathological aspects of a case of sertolioma in ultramarine grosbeak. It was a ultramarine grosbeak (Cyanocompsa brissonii), male, adult, which was admitted to the Veterinary Hospital of UFPB-Areia / PB, increased the accentuated volume of the coelomatic cavity and dyspnea. The patient underwent a contrast-enhanced radiographic examination, which revealed radiopaque intestinal loops, ventrally displaced by an amorphous radiolucent structure in the dorsal region of the coelomic cavity. A surgical procedure was performed to remove the tumor from the bird's coelomic cavity, but the patient did not resist and died. The mass measured 2 cm in diameter, was firm, rounded, brownish, distended the coelomic cavity, displacing the intestinal loops and compressing the other organs. The diagnosis was established based on histopathological findings, which revealed a densely cellular and expansive neoplasm, formed by multiple layers of elongated cells with small round to oval nuclei and eosinophilic cytoplasm, arranged in a palisade, supported by an abundant fibrovascular stroma. It was concluded that sertoliomas should be included as a differential diagnosis in cases of increased volume of the coelomic cavity in passerine birds, and the importance of radiography to identify cavity lesions and histopathology is highlighted for the preparation of accurate diagnosis in cases of testicular neoplasms.