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Great Saphenous Vein. This vein is a conjunction of the dorsal vein of the great toe and the dorsal venous arch of the foot. It travels up the leg, in front of the inner ankle protruberance (anterior to the medial malleolus), and ascends all the way up the lower limb on the inner aspect leg and thigh (anteromedial aspect).
The Great Saphenous Vein (GSV) is the main truncal vein of the lower leg and, as such, drains blood from the inner part of the foot, the skin and fat of the front and inner aspect of the lower leg, and the skin and fat of the inner part of the thigh.