[A case of testicular tumor presenting as acute scrotum].

A case of teratoma of the testis presenting as sudden spontaneous hemorrhage without previous injury is described. A 25-year-old male was admitted with right scrotal pain and swelling. Though acute epididymitis or testicular torsion could not be neglected on physical examination, tumor-like echogram was obtained. High orchiectomy was performed subsequently. Macroscopically, testicular tumor with subcapsular hematoma was evident. Histopathological diagnosis was mature teratoma (pT1, No, Mo). The patient, after combined chemotherapy including cisplatin, vinblastine and peplomycin, is alive well without metastases for 15 months after operation.