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| CASE REPORT |
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| Year : 2010 | Volume
: 56
| Issue : 3 | Page : 213-215 |
Normal pressure hydrocephalus after gamma knife radiosurgery for vestibular schwannoma
TA Mohammed1, MS Ahuja2, SS Ju1, J Thomas3
1 Department of Neurology, National Neuroscience Institute, Singapore General Hospital, Singapore
2 Diagnostic Radiology, National Neuroscience Institute, Singapore General Hospital, Singapore
3 Neurosurgery, National Neuroscience Institute, Singapore General Hospital, Singapore
Correspondence Address:
T A Mohammed
Department of Neurology, National Neuroscience Institute, Singapore General Hospital
Singapore
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0022-3859.68634
Vestibular schwannomas are not uncommon, and gamma knife radiosurgery is one of the treatment options for symptomatic tumors. Hydrocephalus is a complication of gamma knife treatment of vestibular schwannoma, though the mechanism of the development of hydrocephalus remains controversial. We present an unusual case of normal pressure hydrocephalus (NPH) after gamma knife radiosurgery of a vestibular schwannoma in which the timeline of events strongly suggests that gamma knife played a contributory role in the development of the hydrocephalus. This is probably the first case of NPH post radiosurgery with normal cerebrospinal fluid protein. Communicating hydrocephalus should be treated with placement of shunt while non-communicating hydrocephalus can be treated with third ventriculostomy. Frequent monitoring and early intervention post radiosurgery is highly recommended to prevent irreversible cerebral damage.
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