Isolated oculomotor palsy caused by aneurysm of the basilar artery bifurcation.
A 65-year-old woman had diplopia and ptosis of her left eye. A CT scan and vertebrobasilar angiography showed an aneurysm on the basilar artery bifurcation.
D000368:Aged; D001488:Basilar Artery / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications*; D009408:Nerve Compression Syndromes / Q000209:etiology; D009802:Oculomotor Nerve; D009886:Ophthalmoplegia / Q000209:etiology*