title: Congenital absence of inferior vena cava with azygos continuation revealed by vascular echo in a patient with pulmonary thromboembolism and deep vein thrombosis: a case report.
abstract: A 44-year-old man with an isolated anomaly of azygos continuation of the inferior vena cava (IVC) presented with dyspnea due to pulmonary thromboembolism (PTE) and deep-vein thrombosis (DVT). Sono-graphic examination disclosed not only pulmonary hypertension and DVT, but also infrahepatic interruption of the IVC with azygos continuation. A rare anomaly of azygos continuation of IVC could cause DVT and PTE. Vascular echo could play an important role in the examination of DVT and/or venous anomalies.
authors.affiliation: Department of Laboratory Center, Division of Cardiovascular Echo, Saiseikai Kumamoto Hospital, Kumamoto, Japan.
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Namisaki
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Nishigami
authors.forename: Mikiko
authors.initials: M
authors.lastname: Murakami
authors.forename: Tami
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Yuri
authors.initials: Y
authors.lastname: Ogata
authors.forename: Ayako
authors.initials: A
authors.lastname: Tomita
keywords: azygos continuation; deep vein thrombosis; vascular echo