Orbitofrontal seizures presenting with ictal visual hallucinations and interictal psychosis.

Hallucinations are commonly believed to reflect temporal lobe dysfunction. This report presents the clinical, electroencephalographic, and neuroimaging findings in an 8-year-old male who experienced the acute onset of ictal auditory and visual hallucinations associated with epileptic activation of the right orbitofrontal region. Right frontal lobe surgery resulted in seizure freedom and disappearance of his psychotic symptoms. Histologic tissue examination revealed non-balloon cell Taylor type cortical dysplasia.