RECURRING ATYPICAL (PSEUDOSARCOMATOUS) CUTANEOUS FIBROUS HISTIOCYTOMA

Atypical (''pseudosarcomatous''), cutaneous, fibrous histiocytoma is a rare connective tissue tumor arising on the trunk and limbs in young adults, Its histological diagnosis is difficult. We report the case of a 25-year-old woman who presented a nodule on her left leg. Two years after an incomplete excision, she developed a large local recurrence. Additional radiotherapy, after total reexcision was performed. This t reatment was successful and no further recurrence occurred. Clinicopat hological features of atypical (''pseudosarcomatous''), cutaneous, fib rous histiocytoma are reviewed. Differential diagnoses, including atyp ical fibroxanthoma, angiomatoid fibrous malignant histiocytoma and ane urysmal fibrous histiocytoma are discussed.