J Korean Neurosurg Soc.  2010 Dec;48(6):534-537. 10.3340/jkns.2010.48.6.534.

Noncommunicating Spinal Extradural Meningeal Cyst in Thoracolumbar Spine

• Kim IS
• Hong JT
• Son BC
• Lee SW

• KMID: 2018402
• DOI: http://doi.org/10.3340/jkns.2010.48.6.534

Abstract

Spinal extradural meningeal cyst has been rarely reported, whose etiologies are assumed to be the communication of cerebrospinal fluid (CSF) between intradural subarchnoid space and cyst due to the congenital defect in dura mater. Although the CSF communication due to this defect can be found, in most case, few cases in which there is a lack of the communication have also been reported. We report a case of the huge extradural meningeal cyst occurring in the thoracolumbar spine (from T10 to L2) where there was a lack of the communication between the intradural subarachnoid space and cyst in a 46-year-old man who presented with symptoms that were indicative of progressive paraparesis and leg pain. The patient underwent laminectomy and cyst excision. On intraoperative findings, the dura was intact and there was a lack of the communication with intradural subarachnoid space. Immediately after the surgery, weakness and leg pain disappeared shortly.

Keyword

Meningeal cyst; Noncommunicating; Cerebrospinal fluid; Thoracolumbar spine

MeSH Terms

Congenital Abnormalities
Dura Mater
Humans
Laminectomy
Leg
Middle Aged
Paraparesis
Spine
Subarachnoid Space