[Mucoid pseudocyst of the common peroneal nerve. Value of MRI (report of a case)]. / Pseudo-kyste mucoïde du sciatique poplité externe. Intérêt de l'IRM (rapport d'un cas).

The authors report a new case of ganglion cyst of the peroneal nerve. The rarity of this entity induced the authors to report this new case, emphasizing the value of MRI which constitutes a reliable non-invasive examination for the visualization of this lesion.