title: [Echotomography of extraorganic retroperitoneal neoplasms].
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003937:Diagnosis, Differential; D006801:Humans; D008207:Lymphatic Metastasis; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*; D014054:Tomography / Q000379:methods*; D014463:Ultrasonography
vernacular_title: Ekhotomografiia v diagnostike neorgannykh zabriushinnykh novoobrazovaniĭ.