Sural communicating branch of common fibular nerve
Encyclopedia
The sural communicating branch of common fibular nerve is a nerve which gives rise to the sural nerve
Sural nerve
The sural nerve , formed by the junction of the medial sural cutaneous with the peroneal anastomotic branch of the lateral sural cutaneous nerve, passes downward near the lateral margin of the tendo calcaneus, lying close to the small saphenous vein, to the interval between the lateral malleolus...

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It is absent 20% of the time.
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