title: Interruption of the inferior vena cava with azygos termination associated with congenital absence of portal vein.
abstract: The authors report an exceptional and well-documented case of interruption of the retrohepatic segment of the inferior vena cava with an "azygos continuation", combined with absence of the portal vein. The only known combination of congenital anomalies of the inferior vena cava and the portal vein was that of an "azygos continuation" and a preduodenal portal vein. The double interruption, portal and inferior caval, may be associated with a disturbance of preferential flows induced by the left umbilical thrust. According to hemodynamic theory, the left umbilical flow is the determining factor in organogenesis of the portal vein and the retrohepatic segment of the inferior vena cava.
authors.affiliation: Laboratoire d'Anatomie, Faculté de Médecine de Nantes, 1 rue Gaston Veil, F-44035 Nantes, France.
authors.forename: J
authors.initials: J
authors.lastname: Le Borgne
authors.forename: J
authors.initials: J
authors.lastname: Paineau
authors.forename: A
authors.initials: A
authors.lastname: Hamy
authors.forename: B
authors.initials: B
authors.lastname: Dupas
authors.forename: F
authors.initials: F
authors.lastname: Lerat
authors.forename: S
authors.initials: S
authors.lastname: Raoul
authors.forename: A
authors.initials: A
authors.lastname: Hamel
authors.forename: R
authors.initials: R
authors.lastname: Robert
authors.forename: O
authors.initials: O
authors.lastname: Armstrong
authors.forename: J M
authors.initials: JM
authors.lastname: Rogez
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis*; D002763:Cholecystectomy / Q000009:adverse effects / Q000379:methods; D002769:Cholelithiasis / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D008875:Middle Aged; D011169:Portal Vein / Q000002:abnormalities*; D016896:Treatment Outcome; D014682:Vena Cava, Inferior / Q000002:abnormalities*