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Atypical Forms of Epidemic Encephalitis
Prof. A. Austragesilo, after brief reference to three atypical cases of epidemic encephalitis which he had observed in hospital patients, proposed the following classification: incipient atypical forms, atypical forms due to the disappearance of symptoms, and atypical forms complicated by one or more unusual manifestations. The first form is that which shows the toxic type of fever (as in typhoid), cataphrenia, febrile delirium, and chorea, without any of the principal symptoms, especially somnolence. The second form is that in which the principal symptoms, such as fever, somnolence, and involvement of the third nerve, are present at the beginning, but disappear, leaving only the secondary symptoms, such as hemitremor, chorea, hemiparkinsonism, hiccup, ocular myoclonia with nystagmus, and oculogyric crisis. The third form is characterized by abnormal conditions, which may complicate the initial picture of the disease and in which epileptiform or myoclonic alterations, paralysis (hemiplegia, monoplegia
RIO DE JANEIRO. JAMA. 1929;93(9):708. doi:10.1001/jama.1929.02710090048023