[Malignant fibrous histiocytoma with granular cells].
This report describes a malignant tumor of soft tissue which combined granular cells with an histologic pattern of malignant fibrous histiocytoma. Immunohistological and ultrastructural studies were performed. Neo-plastic cells were devoid of S-100 Protein but contained lysozyme. Ultrastructural findings showed granular cells containing numerous lysosomes and non-granular cells exhibiting fibroblastic and histiocytic differentiations. This lesion prompts us to consider either a malignant granular cell tumor or a malignant fibrous histiocytoma.
D000368:Aged; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000648:ultrastructure*; D006801:Humans; D007866:Leg; D008247:Lysosomes / Q000648:ultrastructure; D008854:Microscopy, Electron; D012983:Soft Tissue Neoplasms / Q000648:ultrastructure*
Histiocytome fibreux malin avec cellules granuleuses.