Acute chorea in adults: old and new truths.

In this issue of Arquivos de Neuropsiquiatria, Silva and colleagues report on a series of 10 patients with acute chorea seen at an adult Neurology emergency unit. Their retrospective analysis of patients has some interesting results. First, the authors confirm the widely held notion that stroke is by far the most common etiology of acute chorea. This is a finding with obvious practical implication for health professionals working at adult emergency services. Once the diagnosis of acute chorea is established, [...]