Postirradiation sarcoma (malignant fibrous histiocytoma) following breast carcinoma. An ultrastructural study of a case

Abstract
Sarcoma of the chest wall following postoperative radiation therapy (2500 rads) for breast carcinoma is presented; it appeared 16 years after the initial radiation, and had light and electron microscopic features of malignant fibrous histiocytoma (MFH). Unique ultrastructural finding was the presence of Langerhans cell granules in some of the tumor cells. This appears to be the first documented instance of a soft tissue MFH containing such granules in the tumor cells.