title: Malignant inflammatory histiocytoma (inflammatory fibrous histiocytoma): report of a patient with four lesions.
abstract: A patient with four subcutaneous inflammatory fibrous histiocytomas is presented. Three of these tumors developed synchronously. The neoplasms were examined by light and electron microscopy and were composed of well differentiated histiocytes, multinucleated histiocytes, and less differentiated cells. The ultrastructural findings support the histiocytic nature of this particular tumor.
mesh_terms: D005260:Female; D006644:Histiocytes / Q000648:ultrastructure; D018219:Histiocytoma, Benign Fibrous / Q000648:ultrastructure*; D006801:Humans; D007249:Inflammation / Q000473:pathology; D007425:Intracellular Membranes / Q000648:ultrastructure; D008854:Microscopy, Electron; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000648:ultrastructure*; D012983:Soft Tissue Neoplasms / Q000648:ultrastructure*