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Acquired causes of chorea include vascular disease, post-infective autoimmune central nervous system disorders (PANDAS), drugs, systemic lupus erythematosus, antiphospholipid syndrome, thyrotoxicosis, AIDS, chorea gravidarum, and polycythaemia rubra vera. The authors suggest an approach to the clinical assessment of chorea, the value of investigations, including genetic tests (for which they offer a structured framework highlighting the importance of prior counselling), and finally briefly discuss symptomatic drug treatment of chorea.<\/jats:p>","DOI":"10.1136\/pn.2007.134585","type":"journal-article","created":{"date-parts":[[2008,7,28]],"date-time":"2008-07-28T14:54:08Z","timestamp":1217256848000},"page":"360-373","source":"Crossref","is-referenced-by-count":73,"title":["The differential diagnosis of chorea"],"prefix":"10.1136","volume":"7","author":[{"given":"E J","family":"Wild","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S J","family":"Tabrizi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2007,11,16]]},"reference":[{"key":"2025090411335808000_7.6.360.1","doi-asserted-by":"crossref","first-page":"2169","DOI":"10.1212\/WNL.53.9.2169","article-title":"Relicts of dancing mania: the dancing procession of Echternach.","volume":"53","author":"Krack","year":"1999","journal-title":"Neurology"},{"key":"2025090411335808000_7.6.360.2","doi-asserted-by":"publisher","DOI":"10.1016\/0092-8674(93)90585-E"},{"key":"2025090411335808000_7.6.360.3","first-page":"16","article-title":"Phenotypic characterization of individuals with 30\u00e2\u0080\u009340 CAG repeats in the Huntington disease (HD) gene reveals HD cases with 36 repeats and apparently normal elderly individuals with 36\u00e2\u0080\u009339 repeats.","volume":"59","author":"Rubinsztein","year":"1996","journal-title":"Am J Hum Genet"},{"key":"2025090411335808000_7.6.360.4","first-page":"343","article-title":"Sex-dependent mechanisms for expansions and contractions of the CAG repeat on affected Huntington disease chromosomes.","volume":"57","author":"Kremer","year":"1995","journal-title":"Am J Hum Genet"},{"key":"2025090411335808000_7.6.360.5","doi-asserted-by":"crossref","first-page":"527","DOI":"10.1212\/WNL.46.2.527","article-title":"Trinucleotide repeat length and clinical progression in Huntington\u00e2\u0080\u0099s disease.","volume":"46","author":"Brandt","year":"1996","journal-title":"Neurology"},{"key":"2025090411335808000_7.6.360.6","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-0004.2004.00241.x"},{"key":"2025090411335808000_7.6.360.7","doi-asserted-by":"publisher","DOI":"10.1086\/378133"},{"key":"2025090411335808000_7.6.360.8","unstructured":"Kremer B . 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