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Intracavernous aneurysm with isolated 6th nerve palsy
Annals of Ophthalmology
|August 1, 1975
Summary
A rare cause of sixth nerve palsy is an intracavernous aneurysm. This case highlights the importance of ruling out intracranial lesions and systemic diseases before diagnosing ophthalmoplegic migraine.
Area of Science:
- Neuroscience
- Vascular Neurology
Background:
- Ophthalmoplegic migraine is a rare type of migraine with temporary paralysis of eye muscles.
- Sixth nerve palsy, or abducens nerve palsy, causes difficulty moving the eye outward.
Observation:
- A 35-year-old man with a history of migraine presented with acute isolated sixth nerve palsy.
- Imaging revealed a large intracavernous aneurysm of the carotid artery.
Findings:
- The intracavernous aneurysm was identified as the cause of the sixth nerve palsy.
- This presentation is an infrequent but critical differential diagnosis for ophthalmoplegic migraine.
Implications:
- Clinicians should consider intracranial lesions, such as aneurysms, in patients with isolated sixth nerve palsy.
- Ruling out structural and systemic causes is crucial before diagnosing ophthalmoplegic migraine.