History
What is XXY?:
What is XXY?
History
XXY or Ks?
Treatment
Treatment - Part 2
Sexuality & Fertility
XXY Aneuploidies
For Parents
Adolescence
In Conclusion
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Your physician may have referred to this genetic condition as either XXY or Klinefelter syndrome. Though these terms are often used interchangeably, they actually refer to two quite different, though related, conditions.
In 1942, Dr. Harry
Klinefelter while working at the Massachusetts General Hospital in Boston published with fellow researchers a report about nine individuals who had similar features:
By the late 1950's researchers discovered that those with these features
(Klinefelter syndrome), had an extra X sex chromosome, and were XXY instead of the typical male arrangement of XY.
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