Related Experiment Videos
Computed tomography of chiasmal optic neuritis
AJNR. American Journal of Neuroradiology
|May 1, 1983
Summary
Chiasmal optic neuritis can cause visual field loss and optic chiasm enlargement, mimicking tumors on CT scans. Prompt diagnosis and corticosteroid treatment led to vision recovery in three patients.
Area of Science:
- Ophthalmology
- Neurology
- Radiology
Background:
- Optic chiasm lesions can present with visual field deficits.
- Computed tomography (CT) is crucial for evaluating chiasmal abnormalities.
- Differentiating inflammatory conditions from tumors is clinically significant.
Observation:
- Three patients presented with bitemporal visual field loss and optic chiasm enlargement on CT.
- Two patients underwent craniotomy, with no tumor identified.
- All patients experienced significant visual recovery after corticosteroid therapy.
Findings:
- CT findings were indistinguishable from chiasmal glioma.
- Acute visual loss in older children/adults suggests chiasmal optic neuritis.
- Corticosteroid treatment was effective in resolving symptoms.
Implications:
- Chiasmal optic neuritis should be considered in cases of acute visual loss with chiasmal enlargement.
- Non-invasive observation or a trial of corticosteroids may avoid unnecessary surgery.
- Accurate diagnosis can prevent invasive procedures and guide appropriate treatment.