Fig. 5
From: Blood finds a way: pictorial review of thoracic collateral vessels
Shoulder/chest wall collaterals. a Schematic image of a subclavian obstruction and pathway for collateral flow. b Coronal CT image in a 53-year-old patient with a right apical lung mass (stage IV lung adenocarcinoma) obstructing the subclavian venous flow (black arrow) due to mass effect. Extensive shoulder and chest wall collateral formation (white arrows). c Axial CT image in the same patient shows extensive unnamed shoulder and chest wall collaterals (white arrows)