Grainger J, Dias PS

Skull Base. 2005 Feb;15(1):83-6..

Department of Neurosurgery, University Hospital of North Staffordshire, Royal Infirmary, Stoke-on-Trent, Great Britain, United Kingdom.

Traditionally, visual disturbance and optic disc edema are regarded as late manifestations of acoustic neuromas indicating increased intracranial pressure as a result of obstructive hydrocephalus or a sizeable mass lesion. We report the case of a 56-year-old man who presented with visual disturbance and bilateral optic disc edema. Classic features of hydrocephalus were absent. Magnetic resonance imaging showed a large acoustic neuroma. However, there was no ventriculomegaly and at surgery intracranial pressure was normal. We suggest that cerebrospinal fluid protein may have a role in the formation of optic disc edema through a normal pressure communicating type of hydrocephalus. Furthermore, patients with acoustic neuromas and a visual disturbance related to optic disc edema may be inappropriate for treatment with stereotactic radiosurgery and should be offered early surgery to prevent visual deterioration.<

This abstract is being posted for educational purposes, as well as for comment and criticism, by the visitors to the Acoustic Neuroma Foundation website. This abstract is representative of a larger article that is indexed on Medline.

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