Treatment of Malignant Fibrous Histiocytoma and Atypical Fibrous Xanthomas with Micrographic Surgery

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Abstract
Fibrous tumors of the soft tissue are usually benign, but some fibrous neoplasms such as dermatofibrosarcoma protuberans (DFSP), atypical fibroxanthoma (AFX), and malignant fibrohistiocytoma (MFH) can be very destructive locally with a high recurrence rate after local excision. On occasion, they can metastasize. Previous reports have confirmed the high success rate of Mohs micrographic surgery for the treatment of DFSP, but data have been lacking on the potential benefit of this surgical approach for MFH and AFX tumors. Over the past 6 years, we have treated 17 patients with MFH (20 tumors) and 5 patients with AFX with Mohs micrographic surgery. A retrospective analysis of the surgical results is presented. To date (average 3‐year follow‐up), all patients contacted are tumor free with only one recurrence; no patient has developed metastatic disease. Our results to date are very encouraging; they lend support to Mohs micrographic surgery as a desired surgical approach for these diffiult‐to‐cure neoplasms.

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