Answers are grounded in this paper and cite their sources.
MRI of the brain of a 3-year-old boy performed 3 days after the onset of hemichorea (Sydenham Chorea) revealed abnormal signal and enlargement of the contralateral caudate and putamen. Follow-up imaging 40 months later showed a persistent cystic appearance of the caudate and putamen. This case is the first report of permanent MRI abnormalities after Sydenham Chorea.
No takes yet. Share an insight, caveat, or question.
Emery et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: