抄録
We present a rare case of epithelioid sarcoma of trunk. A 76-year-old man with a huge recurrent tumor of the right anterior chest wall underwent simple excision of the primary small tumor at a local hospital. He developed local recurrence immediately after excision, and five months later he visited our hospital. He already had multiple metastasis, but wide resection was performed to prevent ulceration and bleeding. Histologic features were consistent with those of classic epithelioid sarcoma, but the behavior was quite aggressive. If a more aggressive behavior can be associated with the proximal tumor location, it seems to be meaningful to distinguish proximal-type from distal-type.