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47, XYY syndrome MeSH Supplementary Concept Data 2024


MeSH Supplementary
47, XYY syndrome
Unique ID
C535317
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/C535317
Entry Term(s)
47 XYY syndrome
Jacob's syndrome
XYY syndrome
YY syndrome
Registry Number
0
Heading Mapped to
*XYY Karyotype
*Sex Chromosome Disorders
Frequency
70
Note
An extra copy of the Y chromosome in each of a male's cells that arises through GENETIC NON-DISJUNCTION in the embryo. Affected males may be taller than average, but have no other unique physical features; SEXUAL DEVELOPMENT and FERTILITY are unaffected in most cases. 47,XYY syndrome is associated with an increased risk for LEARNING DISORDERS; DEVELOPMENTAL DISABILITIES; HYPOTONIA, and TICS; these characteristics vary widely among affected boys and men. AUTISM SPECTRUM DISORDERS are diagnosed in a minority of cases.
Date of Entry
2010/06/25
Revision Date
2015/08/17
47, XYY syndrome Preferred
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