TY - JOUR T1 - Urinary retention with occult meningeal reaction: a ‘form fruste’ meningitis-retention syndrome JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2020-236625 VL - 13 IS - 11 SP - e236625 AU - Ryuji Sakakibara AU - Daiki Sakai AU - Fuyuki Tateno AU - Yosuke Aiba Y1 - 2020/11/01 UR - http://casereports.bmj.com/content/13/11/e236625.abstract N2 - We report the case of a 70-year-old Japanese man who was referred from a local urologist because of acute urinary retention (detrusor underactivity revealed by a urodynamics examination). A neurogenic urinary retention workup failed to reveal the aetiology, but a spinal tap incidentally showed occult meningeal reaction with positive oligoclonal band. The patient had no headache, nausea/vomiting or fever. Considering his clinical laboratory findings, his neural lesions seemed to involve the meninges and spinal cord, suggestive of ‘form fruste’ meningitis-retention syndrome. When clinicians encounter patients with urinary retention of undetermined aetiology, a spinal tap should be considered. ER -