One of the most common and well studied innervation anomalies in the upper limbs is the Martin-Gruber anastomosis.1 2In the lower limbs, the anomaly is uncommon except for the accessory deep peroneal nerve.1 2 Recently, an exclusive innervation of the extensor digitorum brevis by the tibial nerve, “all tibial foot” has been reported.3-5 We experienced a similar patient with “all tibial foot”, who, in addition, showed sensory anomaly.

A 23 year old man with encephalitis had nerve conduction studies (NCSs) to exclude coexistent peripheral neuropathy. The studies were normal except for the anomalous …