Small saphenous vein
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The small saphenous vein (SSV) forms part of the superficial venous drainage of the lower limb.
Small saphenous vein is the preferred terminology over other terms such as short saphenous vein, external saphenous vein or lesser saphenous vein 5.
Origin and course
The small saphenous vein forms by the confluence of the lateral aspect of the dorsal venous network of the foot (lateral marginal vein). It passes behind the lateral malleolus and courses directly superiorly in the subcutaneous tissue of the calf. It perforates the deep fascia (fascia lata) to enter the lower aspect of the popliteal fossa and drain into the popliteal vein.
communicating branches with the great saphenous vein
cutaneous venous tributaries
duplication occurs in ~3.5% of the population 3
variable termination (i.e. not into the popliteal vein in the popliteal fossa) 3