[Malignant fibrous histiocytoma].

A 62-year-old patient presented with slow-growing blue-red tumor on his left forearm for around two years. A biopsy revealed the tumor was a rare malignant fibrous histiocytoma (MFH). The finger-like extensions of MFH in the fatty tissue are responsible not only for the high local recurrence rate, but also increase the metastatic potential and affect the prognosis. For this reason radical surgery with surgical margins of 2-3 cm is absolutely required. After wide excision, the patient has been alive for years without evidence of local recurrence or distant metastasis.