[A case of malignant mesothelioma associated intrascrotal mass]

A 70-year-old male was hospitalized for right scrotal mass without pain in October 1991. Right orchiectomy was performed under a diagnosis of right epididymal tumor. Histopathological diagnosis was testicular adenomatoid tumor. In June 1992, he was admitted with a mass in the right inguinal region and a tumor was resected. Histopathological diagnosis was malignant testicular mesothelioma. Therefore, retroperitoneal lymphadenectomy was performed as additional therapy. One year after surgery he showed signs of recurrence and was admitted for treatment and further examination. Computed tomography demonstrated right inguinal and femoral mass. Thus he underwent total penectomy and radical ilioinguinal lymphadenectomy under a diagnosis of metastatic and recurrent mesothelioma of the testis. Three months postoperatively he developed a recurrence in the skin and lung field. After combination chemotherapy, the metastatic skin lesion was in remission but the lung lesion did not respond. Metastatic lung tumor grew rapidly and the patient died. The incidence of malignant mesothelioma of the tunica vaginalis testis is rare and 48 cases have been reported in the literature.