Tarsal tunnel syndrome secondary to neurilemmoma.

Neurilemmoma is an uncommon cause of tarsal tunnel syndrome, and no other cases of this disorder secondary to a lesion at the bifurcation of the medial and lateral plantar nerves have been described. In this case, a 2 x 0.5 x 1-cm mass was palpable on physical examination, and, after failed conservative treatment, surgical excision brought prompt relief of symptoms.