title: [Portal venous return in cases of obstruction of the inferior vena cava. Phlebographic study of five cases (author's transl)].
abstract: Amongst 77 patients studied by phlebography for obstruction of the inferior vena cava, 5 (6%) showed evidence of a portal collateral network: 3 via the mesenteric vein, 2 via the epiploic veins. In four cases the portal flow represented the principal collateral flow. Our cases, together with those described in the literature, show that portal collateral flow occurs in at least 5% of cases of caval obstruction. They should, therefore, have been reported more frequently since it would appear that our five cases bring the total published to date to only 13.
mesh_terms: D000293:Adolescent; D000368:Aged; D001401:Azygos Vein / Q000000981:diagnostic imaging; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011859:Radiography; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*
vernacular_title: Les retours portes en cas d'obstruction cave inférieure. Etude phlébographique de cinq observations