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Related Experiment Video

Updated: Jun 19, 2026

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Published on: September 4, 2017

Spinal accessory nerve cavernous malformation.

Matthew A Hazzard¹, Neal B Patel, Eyas M Hattab

¹Department of Neurological Surgery, College of Medicine, Indiana University, Indiana 46202-5124, USA.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia

|October 20, 2009

Summary

This report details the first case of a cavernous malformation within the spinal accessory nerve. This rare spinal cord lesion presented with neurological symptoms and was successfully resected.

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Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Published on: July 5, 2011

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Last Updated: Jun 19, 2026

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Induction and Micro-CT Imaging of Cerebral Cavernous Malformations in Mouse Model

Published on: September 4, 2017

Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Microvascular Decompression: Salient Surgical Principles and Technical Nuances

Published on: July 5, 2011

Area of Science:

Neurology
Neurosurgery
Pathology

Background:

Cavernous malformations are vascular malformations that can occur in the central nervous system.
Spinal accessory nerve (XI) lesions are rare and can present with neck pain and shoulder dysfunction.

Observation:

A 54-year-old male presented with progressive bilateral extremity paresthesias and pain over several years.
Spinal MRI revealed a heterogeneously enhancing mass at the atlas level, causing mild spinal cord compression.

Findings:

Surgical resection of the mass confirmed a cavernous malformation embedded within a branch of the spinal accessory nerve.
Histologic examination verified the diagnosis of a cavernous malformation.

Implications:

This case represents the first reported instance of a cavernous malformation involving the spinal accessory nerve.
Such lesions should be considered in the differential diagnosis of craniocervical masses presenting with neurological deficits.