[A case of leiomyosarcoma of the scrotum: chemotherapy with anti-cancer agents was effective for the lung metastasis].

A 59-year-old male was referred to our hospital with the chief complaint of a painless scrotal mass. A 6 X 4.5 X 4 cm elastic hard mass with irregular surface was palpable in the right scrotum. We diagnosed a tumor in the right scrotum and resected the tumor surgically. Histopathologically, the tumor was liposarcoma of the right scrotum. Lung tumors were found 20 months after resection of the origin. Systemic chemotherapy with new anti-cancer agents (Paclitaxel and Gemcitabine) was performed. The main tumor was reduced to 56% in its diameter after 6 courses of chemotherapy. Exclusion of the right middle and lower pulmonary lobe was performed. The final pathological diagnosis of the lung tumor was metastatic liposarcoma.