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Traumatic chiasmal syndrome: a feature photograph
K Y Goh1, N J Schatz, J S Glaser
1Department of Ophthalmology, Tan Tock Seng Hospital, Singapore.
Annals of the Academy of Medicine, Singapore
|July 1, 1996
Summary
Traumatic chiasmal syndrome can occur after head injuries. This case highlights the need for neuro-ophthalmic evaluation and imaging due to potential vascular complications like internal carotid pseudoaneurysms.
Area of Science:
- Neuroscience
- Ophthalmology
- Radiology
Background:
- Traumatic chiasmal neuropathy pathogenesis is poorly understood.
- The optic chiasm's proximity to critical structures necessitates thorough evaluation after head trauma.
Observation:
- A patient developed traumatic chiasmal syndrome following an automobile accident.
- Imaging revealed a fracture of the sella turcica and a traumatic pseudoaneurysm of the internal carotid artery.
Findings:
- The case demonstrates a link between facial/skull trauma and optic chiasm injury.
- Computed tomography identified a sella turcica fracture.
- Carotid angiography revealed an internal carotid artery pseudoaneurysm at the skull base.
Implications:
- This case underscores the importance of comprehensive neuro-ophthalmic and vascular imaging in patients with traumatic chiasmal syndrome.
- Early diagnosis of vascular injury is crucial for managing potential complications.
- Understanding the pathogenesis may improve treatment strategies for traumatic optic neuropathies.