title: [Histological classification of primary retroperitoneal tumors].
mesh_terms: D000328:Adult; D000368:Aged; D002648:Child; D006801:Humans; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000145:classification* / Q000473:pathology
vernacular_title: Classification histologique des tumeurs rétropéritonéales primitives.