J Korean Neurosurg Soc.  2011 Jun;49(6):384-386. 10.3340/jkns.2011.49.6.384.

Sudden Foot Drop Caused by Foraminal Gas Pseudocyst

Affiliations
  • 1Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Korea.
  • 2Department of Neurosurgery, Heori Sarang Hospital, Daejeon, Korea.
  • 3Department of Neurosurgery, College of Medicine, Chosun University, Gwangju, Korea. ns64902@hanmail.net

Abstract

A foraminal gas pseudocyst is a rare cause of lumbar radiculopathy. The association with a sudden foot drop has not been previously reported. Here, a 67-year-old woman with sudden foot drop on the left side is reported. Computed tomography and magnetic resonance imaging identified a foraminal gas containing lesion compressing the left L5 root at the L5-S1 foramen. The foraminal gas containing lesion compressing the L5 ganglion was successfully removed by the posterior approach. The histological diagnosis was a gas pseudocyst. This unique case of surgically proven gas pseudocyst indicates that it should be included in the differential diagnosis of patients presenting with sudden foot drop.

Keyword

Gas pseudocyst; Foramen; Foot drop

MeSH Terms

Aged
Diagnosis, Differential
Female
Foot
Ganglion Cysts
Humans
Magnetic Resonance Imaging
Radiculopathy
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