Nonparaneoplastic autoimmune cerebellar ataxias
Nov. 09, 2021
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Generalized spike-wave discharge similar to childhood absence epilepsy preceded by high amplitude delta-theta waves in centroposterior regions. The discharge immediately starts with rhythmic horizontal head jerking. His eyes remain open; there is a vague look and no response. His head turns to the right while jerking and recovers after about 12 seconds. (Contributed by Dr. Athanasios Covanis.)