J.Jpn. Surg. Soc.. 88(1): 119-122, 1987

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Case report

PRIMARY MALIGNANT FIBROUS HISTOCYTOMA OF THE BREAST, REPORT OF A CASE

Although malignant fibrous histiocytoma (MFH) is the most common soft tissue sarcoma of adult, it rarely arises in the breast tissue. Only seven cases have been previously reported in Japan. One case of the MFH of the mammary gland is presented in this paper.
A 39 year old woman, who had received no radiation, was referred to our hospital due to a painful right breast lump. Excisional biopsy revealed yellowish white soft tumor with an obscured margin. Histological, tumor was composed of spindle shaped cells of a storiform pattern, which was diagnosed as MFH of the breast. Radical mastectomy (Br＋Mj＋Ax) was added to this patient. The tumor invaded to the fat tissue without metastasis to the axillar lymph nodes. We performed the post-operative adjuvant chemotherapy of Adriamycin. She made an uneventful recovery and is now free of disease eleven months postoperatively.

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