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Gi Beom Kim, Chul Hyun Park*
Abstract
There are a few reports on tarsal tunnel syndrome resulting from the intraneural ganglion. Although it can occur through a connection with the adjacent joint, there is no consensus on its pathogenesis and treatment method. This paper reports a case of tarsal tunnel syndrome resulting from the intraneural ganglion of the medial plantar nerve of the tibial nerve.
Figures and Tables
Figure 1
(A, B) Magnetic resonance images showed a 1.5×1.5-cm-sized cystic mass around the medial plantar nerve with homogeneous low signal intensity on the T1-weighted image and homogeneous high signal intensity on T2-weighted image. (C) Axial T2 image was suspected as an articular branch of intraneural ganglion connecting to the adjacent subtalar joint. Asterisk, medial plantar nerve intraneural ganglion.
Figure 3
The cystic mass was aspirated using a syringe, following the decompressed nerve was identified.
Figure 4
After the aspiration, as shown in the magnetic resonance images, cystic mass and its articular branch connecting to the adjacent subtalar joint were identified. Dashed line, decompressed medial plantar nerve; black arrowheads, articular branch.
Figure 5
Connection between cystic mass and adjacent subtalar joint was identified behind the sustentaculum tali (white arrowheads). Meticulous debridement of the involved joint capsule and flexor halluces tendon sheath was performed.
References
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