title: Primary malignant fibrous histiocytoma of storiform-pleomorphic type: a case report of an ano-rectal localization.
abstract: Among the various localizations of primary malignant histiocytoma, the ano-rectal one is exceedingly rare. In this paper we report a case characterized by a storiform-pleomorphic pattern of the tumor and a rapid fatal course of the disease with metastasis in the lungs. The prognostic value of the histologic features is briefly discussed.
mesh_terms: D001005:Anus Neoplasms / Q000473:pathology*; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D008875:Middle Aged; D011379:Prognosis; D012004:Rectal Neoplasms / Q000473:pathology*