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research-article

Gradual diagnosis and clinical importance of prenatally detected persistent left superior vena cava with absent right superior vena cava – a case report and literature review

Introduction At week 4 of gestation, the blood of the upper half of a fetal body is drained by the bilateral symmetrically arranged anterior cardinal veins. By week 8 they connect by an oblique anastomosis (future left brachiocephalic or innominate vein) and the part of the left anterior cardinal vein regresses. Persistent left superior vena cava (PLSVC) seems to be a remnant of this regressed vessel(1). Achiron et al. proposed a classification of fetal venous system anomalies, where PLSVC is

Oskar Sylwestrzak, Maria Respondek-Liberska

Journal of Ultrasonography , ISSUE 81, e146–e150

case-report

Anomalous retroaortic paravertebral course of the left innominate vein in a child with atrial septal defect

vessel was adjacent posteriorly and laterally on the left to the descending aorta, and slightly below the junction with the left pulmonary artery it disappeared into the aerated lung tissue, most likely in the posterior (retroaortic) region. The flow in the vessel was considered typical for a systemic vein with a downward direction of flow. The left brachiocephalic vein was not visualized in its usual location. In this area, the persistent left superior vena cava (LSVC) can be seen, with a similar

Wojciech Mądry, Maciej A. Karolczak, Krzysztof Grabowski

Journal of Ultrasonography , ISSUE 76, 71–74

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