(Adapted from Doty JR, Flores JH, Doty DB: Superior vena cava obstruction: bypass using spiral vein graft. Ann Thorac Surg. 1999;67(4):1111–1116; with permission.) Source: Superior Vena Cava, Venous and Lymphatic Diseases Citation: Dieter RS, Dieter RA, Jr., Dieter RA, III. Venous and Lymphatic Diseases; 2016 Available at: http://accesscardiology.mhmedical.com/DownloadImage.aspx?image=/data/Books/1782/dieven_ch19_f006a.png&sec=121398539&BookID=1782&ChapterSecID=121398516&imagename= Accessed: October 01, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved