Syndrome 47, XXY



The 47,XYY syndrome is caused by the presence of two or more Y chromosomes in the karyotype, most often directly by the 47,XYY karyotype. It is therefore a gonosomal numerical aberration. Previously, this syndrome was referred to as "Supermale" - a term that is no longer used today. The syndrome has a minimum of clinical symptoms, men may have a taller stature and mild psychosocial disorders (most often learning disabilities). The results of older studies that linked this syndrome to aggressiveness and criminal behavior were not confirmed  .

ICD-10 classification
47,XYY syndrome according to ICD-10: Q98.5

related articles

 * Chromosomal abnormalities
 * Numerical chromosomal abnormalities
 * Syndromes due to aneuploidy of gonosomes
 * Turner syndrome
 * Klinefelter syndrome
 * Syndrome 47,XXX

Reference

 * 1) ↑ THOMPSON, James Scott, Margaret Wilson THOMPSON, and Robert L NUSSBAUM, et al. Clinical Genetics: Thompson & Thompson. 6th edition. Prague: Triton, 2004. 426 pp.  ISBN 80-7254-475-6.