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Case Reports
. 1998 Jul;29(3):138-41.
doi: 10.1177/155005949802900306.

Intermittent rhythmic delta activity (IRDA) in a patient with band heterotopia

M Nakano  1 , K Abe, J Ono, T Yanagihara
Affiliations
Case Reports

Intermittent rhythmic delta activity (IRDA) in a patient with band heterotopia

M Nakano et al. Clin Electroencephalogr. 1998 Jul.

Abstract

We report a patient with band heterotopia whose electroencephalogram (EEG) showed typical morphological features of intermittent rhythmic delta activity (IRDA). This 18-year-old woman had complex partial seizures. Neuropsychometry revealed mental dysfunction. Magnetic resonance imaging (MRI) showed bilaterally symmetrical layer of heterotopic gray matter in deep white matter over the frontal, parietal and occipital regions. This case is the first report of IRDA detected in band heterotopia.

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