Transient Visual Hallucinations due to Posterior Callosal Stroke.
BACKGROUND
Stroke of the corpus callosum is uncommon, known to be associated with disturbance of higher brain function including hemifacial metamorphosia, but has never been reported to cause visual hallucinations.


METHODS
We report on a case of a 71-year-old woman who presented to the emergency department with a 3-day history of intermittent, formed visual hallucinations in the left visual field, often triggered by eye closure or darkness.


RESULTS
Neurologic examination was normal including cognition and affect, visual acuity, and visual fields. Electroencephalogram was normal. Magnetic resonance imaging scan of her brain showed a small stroke in the right inferior forceps major. Hallucinations resolved on day 2 of her admission, and she remains well more than a year later.


CONCLUSIONS
This is the first report of transient visual hallucinations after a callosal stroke, which is an uncommon territory of stroke and a rare presentation of stroke.
['Ghosh|Gaurav Nagarajan|GN|', 'Wycoco|Victor|V|', 'Ghosh|Soumya|S|']
D000368:Aged D003337:Corpus Callosum D005260:Female D006212:Hallucinations D006801:Humans D008279:Magnetic Resonance Imaging D009460:Neurologic Examination D020521:Stroke D014794:Visual Fields
visual hallucinations Stroke corpus callosum forceps major