Case Reports

Peroneal Nerve Palsy Due to an Intraneural Ganglion: A Case Report of a 4 1/2-Year-Old Boy

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Intraneural ganglion cysts are rare, especially in the pediatric population. Most patients are male and present at a mean age of 34.1,2 These benign masses commonly occur in the peroneal nerve1-10 but have also been reported in the ulnar nerve,3,11-13 the posterior interosseous nerve,14 the median nerve,15 and the brachial plexus.16 Patients typically present with pain and motor deficit. Resolution of these symptoms has been documented with surgical removal of the cyst.1,4,5,9,13 We report a case of a peroneal nerve palsy caused by an intraneural ganglion in a 4 1/2-year-old boy.