[Thymic sarcomatoid carcinoma; report of a case].

The case was a 35-year-old male patient. Upon visiting a local doctor with complaints of cough and pain in the left chest, he was diagnosed as having an anterior mediastinal tumor. A large tumor of 15 cm in size was found by computed tomography( CT) scanning at the anterior mediastinum extending to the left thoracic cavity. Surgical resection was considered to be feasible, and the tumor was removed combined with the left brachiocephalic vein. Partial resection of the pericardium and the left upper lobe was also necessary. The diagnosis was a sarcoma-like thymic cancer by pathology. Although adjuvant chemotherapy was planned, the patient died of cancer recurrence at the 3rd postoperative month.