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Turner syndrome (TS), commonly known as 45,X, or 45,X0, [note 1] is a chromosomal disorder in which cells have only one X chromosome or are partially missing an X chromosome (sex chromosome monosomy) leading to the complete or partial deletion of the pseudoautosomal regions (PAR1, PAR2) in the affected X chromosome.
The Turner syndrome was described as "a syndrome of infantilism" by Henry Turner himself. [2] Terms such as "genital infantilism" (infantilism in development of genitals, hypogenitalism), or "sexual infantilism" (lack of sexual development after expected puberty or delayed puberty) may still be seen, and are considered to be synonyms of ...
This includes patients with Turner Syndrome (45,X or 45,X0) and Klinefelter Syndrome (47,XXY) even though they do not generally present with atypical genitals. XX, Sex reversal : consist of two groups of patients with male phenotypes, the first with translocated Sex-determining region Y protein (SRY) and the second with no SRY gene.
Turner syndrome, one such chromosomal intersex variation, is also associated with hypertension. [12] 23 to 50 percent of those with Turner syndrome are born with congenital heart abnormalities. [41] According to the Journal of the American Heart Association, fetuses with confirmed or suspected Turner syndrome should receive a fetal ...
Turner syndrome, also known as 45,X or 45,X0, is a chromosomal abnormality characterised by a partial or completely missing second X chromosome, [4] [24] [25] giving a chromosomal count of 45, instead of the typical count of 46 chromosomes.
[citation needed] An example of trisomy in humans is Down syndrome, which is a developmental disorder caused by an extra copy of chromosome 21; the disorder is therefore also called trisomy 21. [7] An example of monosomy in humans is Turner syndrome, where the individual is born with only one sex chromosome, an X. [8]
Wilson–Mikity syndrome; Wilson–Turner syndrome; Winchester syndrome; Winter-over syndrome; Wiskott–Aldrich syndrome; Wissler's syndrome; Withdrawal syndrome; Withering abalone syndrome; Wobbly hedgehog syndrome; Wolcott–Rallison syndrome; Wolff–Parkinson–White syndrome; Wolfram syndrome; Wolf–Hirschhorn syndrome; Woodhouse ...
Henry Hubert Turner (August 28, 1892 – August 4, 1970) was an American endocrinologist, noted for his published description of Turner syndrome in 1938 at the annual meeting of the Association for the Study of Internal Secretions.