[Pathognomonic chorioretinal lacunar lesions in an infant with Aicardi's syndrome]. 
We report the case of an 81-day-old female infant who was brought to the Emergency Department because of a seizure.  At 20 weeks of gestational age she was diagnosed to have agenesis of the corpus callosum, with this being confirmed later by magnetic resonance imaging.  Ophthalmological examination of the fundus showed peripapillar chorioretinal lesions (lacunar chorioretinopathy) in both eyes.  Chorioretinal lacunar and retinal pigment epithelial abnormalities are the basis for the diagnosis of this syndrome.