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In 1959, five days after Jérôme Lejeune described the trisomy-21 [3] in Down syndrome, basing himself off Marthe Gautier's work, [4] Jacobs and John Strong described an additional X chromosome in male patients (the 47,XXY karyotype) [5] also known as Klinefelter syndrome, as Harry Klinefelter had already diagnosed the symptoms in 1942.
Long was born with an extra X chromosome, also known as 47,XXY, a specific variant of Klinefelter syndrome. This condition results in excessive estrogen production, resulting in development of female traits such as breasts. Long was teased as a child for his large breasts and underwent breast reduction surgery in adolescence. [4]
Bobby Joe Long, a U.S. serial killer with Klinefelter syndrome. Ricardo López, a Uruguayan-American with Klinefelter syndrome who stalked and attempted to murder Icelandic singer Björk in 1996. Small Luk, intersex activist living in Hong Kong, founder of Beyond the Boundary – Knowing and Concerns Intersex [25]
Klinefelter syndrome is not an inherited condition. The extra X chromosome comes from the mother in approximately 50% of the cases. Maternal age is the only known risk factor. Women at 40 years have a four-times-higher risk of a child with Klinefelter syndrome than women aged 24 years. [15] [35] [36]
Harry Fitch Klinefelter Jr. (/ ˈ k l aɪ n f ɛ l t ər /; March 20, 1912 – February 20, 1990) was an American rheumatologist and endocrinologist. Klinefelter syndrome is named after him. Biography
Licensed marriage and family therapist Kati Morton broke down the eight signs of “eldest daughter syndrome” in a TikTok video that has been viewed over 6 million times.
Left-handed people only make up about 10% of the world's population — so you might be surprised to learn how many of them have been world leaders, artists, well-known athletes, award-winning actors.
lack of forehead wrinkling when patient looks up with head bowed Jolly's test: Friedrich Jolly: neurology: myasthenia gravis or Eaton–Lambert syndrome: electromyography test using repeated stimuli to show fatiguability in myasthenia Jones criteria: T. Duckett Jones: rheumatology: rheumatic fever: criteria used to diagnose rheumatic fever ...