Cerebral polyopia, neuroimaging localization

Objective: To report neuroimaging correlation in two patients with cerebral polyopia. Methods: Record review of the evaluation by a referral neuro-ophthalmology consultation service and neuroimaging of two patients who experienced monocular diplopia while hospitalized. Results: Magnetic resonance imaging and computed tomography of the brain demonstrated discrete occipital infarcts in the dominant hemisphere which corresponded to the visual field loss. At least in one case, the extrastriate cortex appeared spare. The cerebral polyopia was transient, while the field defects were permanent. Conclusions: Cerebral polyopia can be caused by an occipital lesion that does not necessarily extend to the associational areas and can be located in the dominant hemisphere.