To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Video 7 Transposition of the great arteries. Pulmonary artery arising posteriorly from the LV, aorta from the RV anteriorly. Only two vessels seen in the upper mediastinum. View Video 7 at http://movie-usa.glencoesoftware.com/video/10.1530/ERP-18-0027/video-7. EDUCATIONAL SERIES IN CONGENITAL HEART DISEASE: Prenatal diagnosis of congenital heart disease Lindsey E Hunter, and Anna N Seale 2018. 5:R81-R100 DOI: 10.1530/ERP-18-0027 Download Original Video