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[Bilateral homonymous hemianopsia with atrial fibrillation]
Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
|December 29, 1998
Summary
An 80-year-old man experienced sudden vision loss due to bilateral occipital lobe cerebral infarctions. This case highlights posterior cerebral artery cortical branch occlusion as a cause of isolated homonymous hemianopsia.
Area of Science:
- Neurology
- Vascular Neurology
Background:
- Posterior cerebral artery (PCA) occlusions can cause visual field deficits.
- Bilateral PCA territory infarctions are rare and can lead to severe visual impairment.
Observation:
- An 80-year-old male presented with acute bilateral visual disturbance.
- Neurological examination revealed isolated bilateral homonymous hemianopsia, with macular sparing.
- Brain MRI confirmed cerebral infarctions in both occipital lobes.
Findings:
- The clinical presentation and imaging findings were consistent with occlusion of the cortical branches of the bilateral posterior cerebral arteries.
- The absence of other neurological deficits suggested a highly localized vascular event.
Implications:
- This case underscores the importance of considering bilateral PCA cortical branch occlusion in patients with isolated homonymous hemianopsia.
- Understanding such specific vascular patterns is crucial for accurate diagnosis and management of visual disturbances.