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KMID : 1099620150120010012
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Korean Journal of Spine
2015 Volume.12 No. 1 p.12 ~ p.14
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Posterior Epidural Migration of an Extruded Lumbar Disc Mimicking a Facet Cyst : A Case Report
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:Yoo Young-Sun
:Ju Chang-Il/:Kim Seok-Won/:Kim Dong-Min
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Abstract
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Dorsal extradural migration of extruded disc material is clinically uncommon. We report a rare case of posterior epidural migration of an extruded lumbar disc mimicking a facet cyst. A 32-year-old man was admitted to our institute with a 2-week history of severe low back pain and radiating pain in the left leg. The magnetic resonance (MR) images revealed a dorsally located, left-sided extradural cystic mass at the L2-3 level. The initial diagnosis was an epidural facet cyst because of the high signal intensity on MR images and its location adjacent to the facet joint. Intraoperatively, an encapsulated mass of soft tissue adherent to the dural sac was observed and excised. The pathological diagnosis was degenerated disc material. After surgery, the patient experienced complete relief from leg pain.
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KEYWORD
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Disc, Cyst, Facet
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