IJNS 2016; 05(03): 176-179
DOI: 10.1055/s-0036-1581987
Short Illustrated Review
Thieme Medical and Scientific Publishers Private Ltd.

Cystic Intracranial Schwannomas: A Review with a Case Report on Cystic Olfactory Groove Schwannoma

Yadhu K. Lokanath
1  Department of Neurosurgery, J. N. Medical College, KLES Prabhakar Kore Hospital and MRC, Nehru Nagar, Belgavi, Karnataka, India
,
Praful Suresh Maste
1  Department of Neurosurgery, J. N. Medical College, KLES Prabhakar Kore Hospital and MRC, Nehru Nagar, Belgavi, Karnataka, India
,
Shambhulingappa S. Mahantshetti
1  Department of Neurosurgery, J. N. Medical College, KLES Prabhakar Kore Hospital and MRC, Nehru Nagar, Belgavi, Karnataka, India
,
Nandeesh Bevinahalli
2  Department of Neuropathology, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
› Author Affiliations
Further Information

Publication History

04 January 2016

25 January 2016

Publication Date:
14 July 2016 (online)

  

Abstract

Intracranial schwannomas are slow-growing benign nerve sheath tumors arising from the vestibular portion of the VIIIth cranial nerve and less commonly from Vth, VIIth, and lower cranial nerves. However, as optic nerve and olfactory nerve do not contain Schwann cell layer, occurrence of schwannoma is questionable in these cranial nerves. Schwannomas are usually large solid lesions, only relatively small percentage exhibit calcification, and cystic patterns with intracystic fluid levels. In this short illustration, we try to review the possible pathogenesis and management paradigm of these cystic intracranial schwannomas depending upon their location with a report of cystic olfactory groove schwannoma in a 35-year-old female patient.