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Updated: Jul 16, 2026

Spinal Hernia Repair and Cauda Equina Repositioning After Lumbar Decompression under Three-Dimensional Microscopy: A Case Report and Literature Review

Spinal Hernia Repair and Cauda Equina Repositioning After Lumbar Decompression under Three-Dimensional Microscopy: A Case Report and Literature Review

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Mobile cauda equina schwannomas.

E A Marin-Sanabria¹, I M Sih, K K Tan

¹Department of Neurosurgery, National Neuroscience Institute, 11 Jalan Tan Tock Seng, Singapore 308433.

Singapore Medical Journal

|February 17, 2007

Summary

Rare cauda equina schwannomas can migrate significantly from their original spinal tumor location. This migration, confirmed by MRI, highlights the need for clinical awareness of mobile spinal tumors.

Area of Science:

Neurosurgery
Spinal Oncology
Radiology

Background:

Cauda equina tumors are rare spinal neoplasms.
Tumor migration within the spinal canal is an exceptionally uncommon phenomenon.
Schwannomas are the most common nerve sheath tumors.

Observation:

Two male patients, aged 27 and 41, presented with back pain.
Both patients had cauda equina schwannomas that demonstrated significant migration.
Magnetic resonance imaging (MRI) confirmed caudal and rostral migration from the primary tumor site.

Findings:

The study documents two unique cases of spinal schwannoma migration.
Migration occurred both caudally and rostrally within the lumbar spinal canal.
Perioperative MRI was crucial in confirming tumor mobility.

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Implications:

Clinicians should consider tumor migration in the differential diagnosis of cauda equina tumors.
The mobility of these tumors may impact surgical planning and approach.
Further research into the mechanisms of spinal tumor migration is warranted.