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Definition of Encephalitis lethargica
1. Noun. An encephalitis that was epidemic between 1915 and 1926; symptoms include paralysis of the extrinsic eye muscle and extreme muscular weakness.
Exact synonyms: Epidemic Encephalitis, Lethargic Encephalitis, Sleeping Sickness, Sleepy Sickness
Generic synonyms: Cephalitis, Encephalitis, Phrenitis
Generic synonyms: Cephalitis, Encephalitis, Phrenitis
Medical Definition of Encephalitis lethargica
1. A unique encephalitis, presumably viral in origin, which followed the influenza pandemic of 1914-1918. Symptoms included ophthalmoplegia and marked somnolence, and in many survivors, the delayed development of Parkinson's disease; the basis for postencephalitic Parkinsonism. Synonym: encephalitis lethargica, polioencephalitis infectiva. (05 Mar 2000)
Lexicographical Neighbors of Encephalitis Lethargica
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