Right-sided thoracic central venous occlusion: type 2B

Type 2B TCVO with occlusion of ipsilateral SCV and BCV veins, draining through collaterals into patent left IJV, SCV, and IVC.

TCVO: thoracic central venous obstruction; R: right; SCV: subclavian vein; BCV: brachiocephalic vein; L: left; IJV: internal jugular vein; SVC: superior vena cava; IVC: inferior vena cava.

Courtesy of Houssam K Younes, MD, FACS, FSVS.