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A Case of Multiple Tics with Vocalisation (Partial Syndrome of Gilles de la Tourette) and XYY Karyotype

Published online by Cambridge University Press:  29 January 2018

H. Merskey
H. Merskey*
Affiliation:
The National Hospitals for Nervous Diseases, Queen Square, London, W.C.1
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Extract

Multiple tics appear in the population with a frequency estimated at from 1 in 1,000 child psychiatric out-patients (Lucas et al., 1967) to 1 in 12,500 out-patients (Ascher, 1948). The incidence of XYY karyotype is about 1.24 per thousand males (Nielsen and Christensen, 1974). The occurrence of multiple tics with vocalization in a patient with the XYY chromosome constitution strongly suggests that the extra chromosome promotes neurological abnormality.

Type
Research Article
Information
The British Journal of Psychiatry , Volume 125 , Issue 589 , December 1974 , pp. 593 - 594
Copyright
Copyright © Royal College of Psychiatrists, 1974 

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References

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