Medical Dictionary

fatal familial insomnia

noun

Medical Definition of FATAL FAMILIAL INSOMNIA

:  a rare fatal prion disease that is inherited as an autosomal dominant trait, that is marked by progressive neurodegenerative changes especially in the thalamus, and that tends to follow a clinical course exhibiting disturbances of the sleep cycle, intractable insomnia, motor disturbances (as ataxia and myoclonus), dysautonomia, dementia, coma, stupor, and death

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June 30, 2015
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