[Successful CYVADIC combination chemotherapy of metastatic pulmonary lesions involving a mediastinal leiomyosarcoma--a case report].

Discussed is a 34-year-old man who hospitalized for manifesting the superior vena cava syndrome. Chest radiograph and chest CT scan revealed a gross tumor shadow in the superior mediastinum and a tiny shadow in the right lung. Superior vena cavography showed intimal stenosis, irregularities, and stiffness of the superior vena cava.