• World Neurosurg · Aug 2024

    Case Reports

    Pseudomeningocele mimicking sciatica.

    • Julien Jost and Lukas Andereggen.
    • Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland.
    • World Neurosurg. 2024 Aug 1; 188: 124125124-125.

    AbstractWe report on an elderly woman with sciatica due to disc herniation, experiencing complete pain resolution following surgery. Four weeks later, she developed refractory, excruciating pain with foot palsy, prompting a lumbar magnetic resonance imaging that revealed no recurrent disc herniation. Upon exploration, intermittent nerve entrapment through the dural tear and pseudomeningocele was identified. Following dural repair and nerve repositioning, the postoperative course and long-term outcome were uneventful.In contrast to recurrent disc herniation, sciatica resulting from nerve entrapment by a pseudomeningocele is exceedingly rare. Its differential diagnosis is crucial in cases with seemingly unspectacular magnetic resonance imaging findings, as paralysis can occur in symptomatic patients. The radiological presence of a postoperative pseudomeningocele could be overlooked, and the cause of sciatica might become apparent solely during surgical exploration.Copyright © 2024 Elsevier Inc. All rights reserved.

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