The Ophthalmology Unit,  Universiti Malaysia Sarawak (UNIMAS), Kuching, Sarawak.

The Ophthalmology Department, Sarawak General Hospital, Kuching, Sarawak, East Malaysia.

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Posterior communicating artery aneurysm

Photo by Professor Chua Chung Nen

This 49 year-old woman who was previously well developed a sudden headache and collapsed at home. Urgent brain scan revealed a posterior communicating artery aneurysm confirmed on carotid artery angiogram and the aneurysm was clipped. Post-operatively the patient complained of diplopia and ptosis. Ocular movement showed partial third nerve palsy.

 

Cerebral angiogram shows the presence of a left posterior communicating aneurysm.

 

Left partial ptosis and down and out globe.

 

Ocular movement shows muscles supplied by the third nerve have weak actions.

 

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