title: [Contribution of echotomography in the diagnosis of retroperitoneal masses].
mesh_terms: D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D014054:Tomography / Q000379:methods; D014463:Ultrasonography
vernacular_title: Apport de l'échotomographie dans le diagnostic des masses rétropéritonéales