CC BY-NC-ND 4.0 · Asian J Neurosurg 2012; 7(03): 151-153
DOI: 10.4103/1793-5482.103728

Schwannoma originating in lateral recess of the fourth ventricle

Rajneesh Kachhara
Department of Neurosurgery, Bombay Hospital, Indore
Prakash Raje
1   Department of Pathology, Bombay Hospital, Indore
Apoorva Pauranik
2   Department of Medicine, MGM Medical College, Indore
› Author Affiliations

Intracranial schwannomas most commonly occur in relation to vestibular nerves followed by trigeminal nerves. Authors describe a very unusual case of schwannomas originating in lateral recess of the fourth ventricle. Tumor was completely excised micro-surgically via midline suboccipital craniectomy and C1 laminectomy. Dissection of the surgical specimen revealed that the tumor was completely free from surrounding structures and just hanging in the fourth ventricle. It was not attached to any cranial nerves, brain parenchyma, and blood vessel or to the dura mater. Histopathological examination confirmed the diagnosis of schwannoma. To our knowledge, no such case has been reported so far from this extremely rare location. Relevant literature is reviewed and hypothesis for ectopic location of these tumors has been highlighted.

Publication History

Article published online:
27 September 2022

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