title: Isolated retroaortic left innominate vein in an adult without cardiac or aortic anomalies.
abstract: Retroaortic innominate vein is an uncommon variant reported in patients with congenital heart disease. However, isolated retroaortic innominate vein without associated cardiac or arch anomalies is extremely rare. We present a case of a 68-year-old man who was found to have this anomalous variant incidentally on computed tomography (CT) of the thorax. We also briefly discuss its associations, embryology, and clinical significance.
authors.affiliation: Department of Diagnostic Radiology, Khoo Teck Puat Hospital, 90 Yishun Central, Singapore 768 228, Republic of Singapore.
authors.forename: Sivasubramanian
authors.initials: S
authors.lastname: Srinivasan
authors.affiliation: Department of Diagnostic Radiology, Khoo Teck Puat Hospital, 90 Yishun Central, Singapore 768 228, Republic of Singapore.
authors.forename: Anbalagan
authors.initials: A
authors.lastname: Kannivelu
authors.affiliation: Department of Diagnostic Radiology, Khoo Teck Puat Hospital, 90 Yishun Central, Singapore 768 228, Republic of Singapore.
authors.forename: Syed Zama
authors.initials: SZ
authors.lastname: Ali
authors.affiliation: Department of Diagnostic Radiology, Khoo Teck Puat Hospital, 90 Yishun Central, Singapore 768 228, Republic of Singapore.
authors.forename: Poh Lye Paul
authors.initials: PL
authors.lastname: See
keywords: Anomalous left innominate vein; embryology; imaging