A Case of Aseptic Meningitis Presenting With Widespread Non‐Dermatomal Neuropathic Pain

Aseptic meningitis occasionally causes neuropathic pain in a dermatomal distribution, but widespread non-dermatomal pain is extremely rare. We report a case of a 62-year-old man with ulcerative colitis who developed neuropathic pain involving the head, trunk, and limbs. Cerebrospinal fluid analysis and brain MRI confirmed aseptic meningitis. Although vitamin B12 deficiency and cervical spondylotic myelopathy were present, they did not explain the symptoms. The pain improved with oral analgesics. This case highlights aseptic meningitis as a possible cause of non-dermatomal neuropathic pain.