Atypical Cutaneous Fibrous Histiocytoma : An Unusual and Misleading Variant of Fibrous Histiocytoma

Abstract EN

Atypical fibrous histiocytoma is a distinctive variant of cutaneous fibrous histiocytoma, which is often mistaken histologically for sarcoma and which have a tendency to recur locally and a capacity to metastasize, although very rarely.

We report a new case of atypical cutaneous fibrous histiocytoma in a 31-year-old man who presented with a recurrent polypoid nodule on the abdominal wall.

The diagnosis was made on the basis of morphological and immunohistochemical findings.

We discuss through this case and a review of the literature pathological and evolutive features and diagnostic difficulties of this entity.