Peroneal neuropathy caused by an extraneural ganglion cyst in the supracondylar area of the femur: A case report.

Physicians should bear in mind that the peroneal neuropathy can occur because of the ganglion cyst in the distal thigh. The thorough evaluation of EDX and USG is crucial for the early diagnosis and surgical intervention, although there is no abnormal finding around the fibular neck.