[A case of sertoli cell tumor with arteriovenous malformation].

A 56-year-old man was admitted to our hospital with a chief complaint of pain in the right scrotum. On examination, the patient showed neither gynecomastia nor superficial lymphadenopathy. The serum levels of alpha-fetoprotein, human chorionic gonadotropin-beta, and lactate dehydrogenase (LDH) were not elevated. Ultrasonography and computed tomography (CT) demonstrated hematoma and testicular tumor with abundant blood flow in the right testis. CT revealed no evidence of retroperitoneal lymph node enlargement or distant metastasis. Radical orchiectomy was performed under a diagnosis of right testicular tumor. Histological analysis of the lesion indicated a Sertoli cell tumor. The patient is currently well, with no signs of either recurrence or metastasis about 8 months after the operation.