Fig. 2From: Nerve entrapment syndromes of the lower limb: a pictorial reviewa The contents of the tarsal tunnel are illustrated. b, c An accessory muscle which can predispose to tarsal tunnel syndrome. This case is of a 20-year-old male with an accessory flexor hallucis longus muscle (white arrow) within the tarsal tunnel demonstrated on sequential axial PD imagesBack to article page