Extraforaminal Discal Cyst as Cause of Radiculopathy
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Updated: Sep 7, 2026

A Mobile Outside-in Technique of Transforaminal Lumbar Endoscopy for Lumbar Disc Herniations
Published on: August 7, 2018
Bertrand Mathon1, Peggy Bienvenot2, Delphine Leclercq2
1Assistance Publique-Hôpitaux de Paris, Department of Neurosurgery, La Pitié-Salpêtrière University Hospital, Paris, France; Sorbonne University, University of Pierre and Marie Curie, Paris, France.
Abstract:
We report the first extraforaminal location of a lumbar discal cyst. The patient was treated by hemilaminectomy, arthrectomy, cyst resection, and unilateral arthrodesis, achieving complete release of the nerve root. Extraforaminal lumbar discal cyst may represent an unexpected cause of sciatic pain with favorable outcome after surgical resection.
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