Gilles de la Tourette's syndrome in monozygotic twins.
Concordance is reported of Gilles de la Tourette syndrome in a male twin pair in whom phenotyping revealed a >98·7% probability that they were monozygotic. The development and extent of the illness differed markedly in the two subjects. Our findings are compatible with the view that there is a genetic form of Gilles de la Tourette syndrome.
D000293:Adolescent; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D005879:Tourette Syndrome / Q000175:diagnosis / Q000235:genetics*; D014427:Twins; D014430:Twins, Monozygotic