Mystery Case: Brown-Séquard syndrome caused by idiopathic spinal cord herniation

Erich Talamoni Fonoff, William Omar Contreras Lopez, Manoel Jacobsen Teixeira

Research output: Articles / NotesArticle in a non-specialized journalpeer-review

4 Scopus citations


A 48-year-old man developed numbness in the left leg, which progressed gradually to paresis and urinary incontinence. Neurologic examination revealed a left Brown-Sequard syndrome with leg paresis, mild spasticity, reduced proprioception, and contralateral thermal and painful hypoesthesia below T6. MRI revealed a thoracic spinal cord herniation (SCH) (figure). Idiopathic SCH is relatively rare. Pathogenesis involves a dura mater defect (see video on the Neurology® Web site at; herniation develops over a progressive pressure gradient through the dural fissure. 2 Surgical reduction is typically performed if symptoms progress, but mild symptoms may be eligible for conservative treatment and monitoring. Surgical spinal reduction and dural repair usually reverses neurologic deficits.

Original languageEnglish
Pages (from-to)e34
Issue number4
StatePublished - 26 Jul 2016
Externally publishedYes


Dive into the research topics of 'Mystery Case: Brown-Séquard syndrome caused by idiopathic spinal cord herniation'. Together they form a unique fingerprint.

Cite this