Unilateral Sertolioma as a cause of sudden death by internal bleeding in a Anser cygnoides goose

An adult male goose (Anser cygnoides) of unknown age, raised at the Lutheran University of Brazil, was found dead without showing clinical history and was submitted for post mortem investigation in the Department of Pathology of the Veterinary Hospital. From the necropsy and histopathological findings, the cause of death was defined as exsanguination due to intestinal hemorrhage from ruptured vessels in a tumor in the right testis, which also presented hepatic metastasis.

goose; internal bleeding; sudden death; testicular neoplasm; Sertoli cell tumor