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Updated: May 6, 2026

Intraoperative Ultrasound in Spinal Surgery

Intraoperative Ultrasound in Spinal Surgery

Published on: August 17, 2022

Spinal epidermoid cyst: illustrative case.

Saarang Patel¹, Arjit Singh², Jacob Gould³

¹Department of Biological Sciences, Seton Hall University, South Orange, New Jersey.

Journal of Neurosurgery. Case Lessons

|May 4, 2026

Summary

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This summary is machine-generated.

Endoscope-assisted microsurgery offers a safe and effective method for removing recurrent spinal epidermoid cysts. This technique provides excellent visualization, leading to gross-total resection and favorable short-term outcomes.

Area of Science:

Neurosurgery
Spinal Surgery

Background:

Spinal epidermoid cysts are rare, benign tumors (<1% of spinal tumors).
These cysts can be congenital or acquired, often presenting with progressive neurological deficits due to mass effect.
Complete resection is challenging when cysts adhere to neural structures, increasing recurrence risk.

Purpose of the Study:

To evaluate the efficacy of endoscope-assisted microsurgical resection for recurrent spinal epidermoid cysts.
To assess the safety and outcomes of this minimally invasive approach in a complex case.

Main Methods:

A 71-year-old female with a history of lumbar surgery underwent revision laminectomy with endoscope assistance.
The recurrent intradural extramedullary lesion at L1-2 was targeted for gross-total resection.

Keywords:

endoscopic epithelial inclusion cysts intradural extramedullary spinal tumor laminectomy spinal cord

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Pathological analysis confirmed the lesion as an epidermoid cyst.

Main Results:

The patient achieved gross-total resection of the recurrent spinal epidermoid cyst.
Postoperatively, the patient remained neurologically stable.
No recurrence was observed at the 3-month follow-up.

Conclusions:

Endoscope-assisted microsurgery enhances visualization for safe and effective spinal epidermoid cyst removal.
This technique facilitates gross-total resection, even in recurrent cases.
Long-term surveillance is crucial due to the potential for cyst recurrence.