Investigating an uncommon cause of cervicobrachial neuralgia: Cervical plexiform neurofibroma.

Plexiform neurofibroma is characterized by diffuse intraneural neoplastic overgrowth involving a long nerve segment, with tortuous expansion of its branches. It is a hallmark of Neurofibromatosis Type 1 (NF1). We report the case of a 36-year-old man with a known diagnosis of NF1, who was admitted for chronic posterior cervical pain and cervicobrachial neuralgia. MRI findings were consistent with plexiform neurofibromas. This case underscores the importance for radiologists to consider these tumors as a potential cause of cervicobrachial neuralgia in patients with NF1.