[A case of benign mesenchymoma of the chest wall recurred 8 years after the last operation].

Benign Mesenchymoma of the chest wall is very rare neoplasm. We report a case of the tumor. The patient is a 64 year-old male, whose tumor was removed on 1978. Histologically, the tumor was diagnosed as benign mesenchymoma. However, 8 years after the last operation, the tumor recurred in the right chest wall. The tumor was 4.5 X 4.0 cm in size and was removed smoothly n Nov. 1986. It was composed of fat tissue, blood vessels and smooth muscles. One year and two months later, the patient is alive without recurrence.