Stenosing Tenosynovitis of the Flexor Hallucis Longus Tendon Associated with the Plantar Capsular Accessory Ossicle at the Interphalangeal Joint of the Great Toe

Figure 3

Ultrasonography image of the interphalangeal joint (IPJ) showed fluid retention around the plantar capsule nodule and flexor hallucis longus tendon on the affected side, but not on the healthy side, of the great toe. (a) Affected side. (b) Healthy side. DP: distal phalanx and PP: proximal phalanx. Plantar capsule nodule. Flexor hallucis longus.

(a)

(b)