A 13-year-3-month-old boy, born to parents with no history of febrile convulsions or epilepsy, had typical early development until age four, when myoclonic jerks of the eyelids began. These episodes were initially mistaken for tics, but after six months of further testing, their true nature was identified. The interictal EEG showed a positive eye closure effect and a photo-paroxysmal response. Ictal EEG revealed bursts of poly-spikes and poly-spike-spike complexes at 3-5Hz, lasting 2-6 seconds, often irregular and fragmented, mostly over the parieto-occipital regions or with an anterior maximum.
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