PMID: 8958749Aug 1, 1996Paper

Multicystic encephalopathy with frontal lobe-originated gelastic seizure, ipsilateral oculogyric crisis, and horizontal epileptic nystagmus: an autopsy case

Rinshō shinkeigaku = Clinical neurology
K OharaS Hayashi

Abstract

Attacks of gelastic (laughing) seizure are usually reported as complex partial seizures of temporal lobe epilepsy and seizures associated with hypothalamic hamartomas, but are rarely reported as complex partial seizures of frontal lobe origin. We recently encountered a 29-year-old woman who had gelastic seizure attacks from age 17. She had shown severe mental retardation with cerebral palsy at 7 months, and entered precocious puberty at age 7. Attacks of gelastic seizure with ipsilateral adversive seizures, ipsilateral oculogyric crisis, and horizontal epileptic nystagmus were observed until her death at age 29. Each gelastic seizure lasted 1 to 10 minutes. Her laughing was very strong and loud. Interictal spikes were observed over the right fronto-parietal lobe, but no ictal spike was detected. The neuropathological examinations of her brain revealed no hypothalamic lesions such as hamartomas, gliosis, and distinct neuronal loss. Her brain was severely affected with multicystic encephalopathy, and the bilateral temporal lobe tissues were almost replaced by the cystic changes. The right frontal lobe and occipital lobe were not cystic. From the clinicopathological examinations, the focus of her gelastic seizure was considered to...Continue Reading

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