Fig. 1From: Autologous sapheno-saphenous bypass collateral development in the setting of chronic unilateral iliac vein occlusionAxial CT of a 50-year old male presenting with bilateral lower extremity edema and pain. Torturous collaterals connecting the great saphenous veins immediately proximal to the saphenofemoral junctions are noted coursing through the anterior pelvic wall adipose tissue (white arrow)Back to article page