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Mesial temporal lobe epilepsy with hippocampal sclerosis (interictal scalp EEG)

Scalp EEG with about 1-per-second repetitive sharp-slow-waves in both anterior temporal regions; the right side precedes the left by 300 ms. The patient had been aura- and seizure-free for 20 years following a right selective amygdalohippocampectomy. Histology revealed a small schwannoma in the right. The EEG normalized within 6 months postoperatively including the dependent left-sided "mirror focus." (Contributed by Dr. Heinz Gregor Wieser.)

Associated Disorders

  • mesial temporal lobe epilepsy
  • mesial temporal lobe epilepsy with hippocampal sclerosis