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1: Br J Psychiatry. 1978 Jul;133:77-81.Links

Two transsexuals with 47-XYY karyotype.

Buhrich N, Barr R, Lam-Po-Tang PR.

Previous reports of sexual orientation and gender identity in subjects with XYY karyotype are reviewed. Two patients seeking a change of sex operation and found to have an XYY karyotype are described. It is argued that an XYY karyotype may predispose to a disturbed gender identity and possibly to the development of the transsexual syndrome.

PMID: 667511 [PubMed - indexed for MEDLINE]