title: Sudden foot drop caused by foraminal gas pseudocyst.
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.
authors: Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Korea.
authors: Hyun Sook
authors: HS
authors: Kim
authors: Heyun Sung
authors: HS
authors: Kim
authors: Seok Won
authors: SW
authors: Kim
authors: Ho
authors: H
authors: Shin