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Journal of Korean Neurosurgical Society > Volume 49(6); 2011 > Article
Journal of Korean Neurosurgical Society 2011;49(6): 384-386.
doi: https://doi.org/10.3340/jkns.2011.49.6.384
Sudden Foot Drop Caused by Foraminal Gas Pseudocyst.
Hyun Sook Kim, Heyun Sung Kim, Seok Won Kim, Ho Shin
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.
Key Words: Gas pseudocyst; Foramen; Foot drop
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