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Progressive ataxia and palatal tremor: Two autopsy cases of a novel tauopathy

Background: Sporadic progressive ataxia and palatal tremor is a rare syndrome characterized by mid‐ to late‐adult‐onset symptomatic palatal tremor and slowly progressive cerebellar ataxia. To date, there has been only one autopsy report, which described a novel 4‐repeat tauopathy with hypertrophic olivary degeneration and tau‐positive inclusions in olivary neurons and dystrophic neuritic processes termed glomeruloid bodies. We report on 2 additional autopsy cases.