title: [Primary retroperitoneal neoplasms of histiocytic origin].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006099:Granuloma / Q000473:pathology*; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D014973:Xanthomatosis / Q000473:pathology*
vernacular_title: Tumores retroperitoneales primitivos de origen histiocitario.