chorea
Pronunciation: koh-REE-ah
Involuntary, irregular, dance-like movements that flow randomly from one body part to another.
Full Definition
Chorea is a hyperkinetic movement disorder characterized by involuntary, unpredictable, flowing movements that appear to dance from one part of the body to another. In children, chorea may affect the face, trunk, or limbs, causing grimacing, shoulder shrugging, or limb flinging movements. The movements are non-rhythmic, brief, and seemingly random. Chorea can interfere with voluntary movement and may be incorporated into seemingly purposeful actions (parakinesia). Common pediatric causes include Sydenham's chorea (post-streptococcal), Huntington's disease (rare in children), and drug-induced chorea. The condition may be associated with hypotonia and emotional lability. Assessment involves detailed movement analysis and investigation for underlying causes.
Usage
Usage note: From Greek meaning 'dance'; distinguish from athetosis (slower, writhing movements).
In Context
- "The child's facial chorea included involuntary grimacing and tongue protrusion that disrupted speech." — Clinical examination
- "Sydenham's chorea was diagnosed following the discovery of elevated anti-streptolysin O titers." — Diagnostic workup