Abstract

Peroneal intraneural ganglion cystsusually occur in adult male population and may cause neurological symptoms. Most patients complain of pain and palpable mass located near the lateral part of the fibular neck where peroneal nerve passes through.Most of the patients share complaints of pain and palpable masses located near the lateral part of the fibular neck where peroneal nerve passes through. We would like to present the case of a 14-year-old girl who presented in our clinic with pain and mass at the lateral side of her knee and drop foot due to a peroneal intraneural ganglion cyst, a rare cause of lower extremity paralysis. In order to regain best possible recovery, quick diagnosis and immediate treatment  are essential in such cases. Magnetic resonance imaging (MRI) provides reliable and proper information and while also shedding light on therapeutic approaches.

Key Words: Ganglion Cyst; Peroneal Nerve; Superior Tibiofibular Joint; Magnetic Resonance Imaging.