Intraneural synovial cyst of the common peroneal nerve (MRI)
Citation, DOI and case data
Pain in left lower leg which began two months prior.
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T2 hyperintense lesion, small in size and have a typical tubular configuration tracking along the course of the common peroneal nerve.
An electromyography (EMG) was congruent with peroneal nerve entrapment.
Intraneural cysts are benign lesions filled with mucinous content and located inside the epineurum of the peripheral nerves. Peroneal nerve is the most affected nerve. The entity is rare and its ethiopathology still remains to be definitely elucidated.
Early diagnosis and appropriate surgical treatment of this condition is a key to a successful outcome.
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