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Indian J Endocrinol Metab. 2012 Sep;16(5):824-6. doi: 10.4103/2230-8210.100642.

An adolescent with 48,XXYY syndrome with hypergonadotrophic hypogonadism, attention deficit hyperactive disorder and renal malformations.

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1
Department of Clinical Medicine, University of Colombo, Sri Lanka.

Abstract

48,XXYY is a rare sex chromosome aneuploidy affecting 1 in 18,000 to 50,000 male births. They present with developmental delay, hypogonadism, gynecomastia, intention tremors, and a spectrum of neurodevelopmental and psychiatric disorders. At one time this condition was considered a variant of Klinefelter syndrome. In clinically suspected cases, 48,XXYY syndrome can be diagnosed by chromosome culture and karyotyping. This patient presented with hypergonadotrophic hypogonadism, attention deficit hyperactive disorder, and renal malformatons. Klinefelter syndrome was clinically suspected. The karyotype confirmed the diagnosis of 48,XXYY syndrome. This is the first reported case of 48,XXYY syndrome from Sri Lanka.

KEYWORDS:

48,XXYY syndrome; hypergonadotrophic hypogonadism; sex chromosome aneuploidy

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