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Insights into Imaging
Fig. 2 | Insights into Imaging

Fig. 2

From: Blood finds a way: pictorial review of thoracic collateral vessels

Fig. 2

Causes of obstruction. a Axial CT image showing complete obstruction of the SVC secondary to extrinsic mass compression (arrow). b Axial CT image demonstrating SVC narrowing/occlusion (arrow) secondary to chronic indwelling catheter. c Axial CT image demonstrating intraluminal obstruction of the left axillary vein from a chronic thrombus (arrow)

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