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Published on: August 11, 2015
Unilateral papilledema caused by a fronto-temporo-parietal arachnoid cyst
1Department of Opthalmology, Augenflinik, Kantonsspital Aarau, CH 5001 Aarau, Switzerland. Killer@KSA.ch
Purpose:
To report a case of unilateral papilledema caused by an arachnoid cyst.
Methods:
Interventional case report.
Results:
A 36-year-old woman presented with unilateral papilledema in the left eye. Magnetic resonance imaging (MRI) of the brain demonstrated a large fronto-temporo-parietal arachnoid cyst in the left hemisphere. The papilledema resolved after placement of a cysto-peritoneal shunt that drained the cerebrospinal fluid directly from the arachnoid cyst into the peritoneum.
Conclusion:
Papilledema caused by increased intracranial pressure is usually bilateral; unilateral papilledema is possible under special anatomical circumstances.
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