Article
New Horizons in Klinefelter Syndrome: Current Evidence, Gaps, and Research Priorities
11 Feb 2025
Abstract excerpt
Klinefelter syndrome (KS) is caused by the presence of a supernumerary X chromosome (conferring the classical 47,XXY karyotype) and is the most common sex chromosome abnormality in men. The clinical features described in the early characterization of the syndrome include tall stature, small testes, hypogonadism, gynecomastia, and neurodevelopmental deficits. However, the syndrome presents a broad phenotypic...
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