title: [Retroperitoneal malignant xanthogranuloma (author's transl)].
abstract: A rare retroperitoneal malignant xanthogranuloma is described. The patient developed malignant bone lesions followed by brain localization, and died three years later. At autopsy a very large cystic retroperitoneal tumor with osteolytic lesion of sacrum was found. A review of cases diagnosed as retroperitoneal xanthogranuloma indicates that this lesion seems to be a particular form of the wide group of malignant fibrous histiocytoma with xanthomatous and inflammatory cells. Moreover it could be a primary malignant fibrous histiocytoma of bone. Furthermore, difficulties of differential diagnosis of these tumors are discussed mainly with histiocytosis X.
mesh_terms: D000293:Adolescent; D001847:Bone Diseases / Q000473:pathology; D001859:Bone Neoplasms / Q000473:pathology; D003937:Diagnosis, Differential; D006099:Granuloma / Q000473:pathology*; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology; D006689:Hodgkin Disease / Q000473:pathology; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000473:pathology*; D012447:Sacrum / Q000473:pathology; D014973:Xanthomatosis / Q000473:pathology*
vernacular_title: Xanthogranulome rétro-péritonéal malin.