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Interictal EEG showing multifocal spikes (a) and burst-attenuation pattern (b). Ictal EEG showing right hemispheric seizure onset (arrows) with fast activity noted over the right hemisphere best expressed over the posterior leads (c) and left hemispheric seizure onset (arrows) with fast activity noted over the left hemisphere best expressed over the posterior leads (d).
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The corresponding ictal EEG showed seizure origin from the left hemisphere (Fig. 1d) and from the right hemisphere (Fig. 1c). The interictal EEG showed multifocal spikes (Fig. 1a) and burst-attenuation pattern (Fig. 1b).
Chromosome preparation showing an additional Y chromosome.
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Karyotyping revealed a supermale with 47XYY pattern (Fig. 2).