Commentary: Cubital tunnel syndrome caused by intraneural or extraneural ganglion cysts-case report and review of the literature

Chang et al. describe 16 patients with extraneural ganglion cysts and 3 with intraneural ganglion cysts among their cohort of 184 consecutive patients with cubital tunnel syndrome. The authors do an admirable job of recognizing a connection to the elbow joint in each case. Despite the juxta-articular location of these cysts, many of these in the literature are still thought not to arise from the elbow joint. The finding that all patients with ganglion cysts had osteoarthritis of the elbow is reminiscent of the findings reported for peroneal extraneural and intraneural cysts arising from a degenerative superior tibiofibular joint (STFJ).

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