Landau-Kleffner syndrome /län′dou klef′nər/ [William M. Landau, 20th-century American neurologist; F.R. Kleffner, 20th-century American neurologist] , an epileptic syndrome of childhood characterized by partial or generalized seizures, psychomotor abnormalities, and language regression that can progress to mutism. The electroencephalogram from bilateral temporal regions is abnormal. Also called acquired epileptic aphasia.
