[Malignant fibrous histiocytoma of the maxillofacial region].

Malignant fibrous histiocytoma (MFH) is the most common soft tissue sarcoma and is characterized by a variable morphology, which often creates difficulties in differential diagnosis. The clinical behavior and the pathologic features of 9 cases of MFH of the head and neck were studied. The cases presented demonstrate the poor prognosis of these lesions because of their strong tendency to recur locally and to form distant metastases, especially to the lungs.