Sydenham's chorea
Sydenham's chorea, also known as chorea minor and historically and occasionally referred to as St Vitus' dance, is a disorder characterized by rapid, uncoordinated jerking movements primarily affecting the face, hands and feet. Sydenham's chorea results from childhood infection with Group A beta-haemolytic Streptococcus and is reported to occur in 20–30% of people with acute rheumatic fever. The disease is usually latent, occurring up to 6 months after the acute infection, but may occasionally be the presenting symptom of rheumatic fever. Sydenham's chorea is more common in females than males and most below 16 years of age. Adult onset of Sydenham's chorea is comparatively rare, and the majority of the adult cases are associated with exacerbation of chorea following childhood Sydenham's chorea.
Sydenham's chorea-1