Abstract
Homonymous hemianopia due to lateral geniculate body (LGB) lesion has rarely been reported. It is difficult to detect the LGB lesion by neuroimaging. We report two patients with characteristic homonymous hemianopia due to cerebral infarction of the LGB. In both patients, Goldmann perimetry showed incongruous and wedge-shaped homonymous hemianopia, and magnetic resonance imaging demonstrated infarction of the LGB. In addition, occlusion of the lateral posterior choroidal artery was confirmed by magnetic resonance angiography in one of these patients. To diagnose of a LGB lesion, we should carefully observe characteristic visual field defects, accompanying neurologic symptoms, and neuroimaging findings, including magnetic resonance angiography.
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