They are sterile or nearly so, and their testes and prostate autosomal and sex chromosome disorders xxy in Eydzhaks are small. If not given extra help in early childhood, this often leads to poor school grades and a subsequent low self esteem. Adults are often evaluated for infertility or breast malignancy [ 9 ].
In somatic cells in normal females but not in normal malesone X chromosome is inactivated early in development, thus equalizing the expression of X-linked genes in the 2 sexes. There is no actual cure for this syndrome but treatments can be done to alleviate some of its symptoms, e.
Most 47,XXY boys have a lag in language skills with mildly delayed expression of single words. However, most men who have Klinefelter syndrome are sufficiently ordinary in appearance and mental ability to live in society without notice.
Urinary gonadotropins are increased due to abnormal Leydig cell function. The majority of 47,XXY males rate themselves as more sensitive, apprehensive, and insecure than their peers. As adults, these "super-females" or "metafemales"as they are sometimes known, generally are an inch or so taller than average with unusually long legs and slender torsos but otherwise appear normal.
One study characterized 47,XXY males as timid, immature, and reserved, with difficulty relating to their peer group, whereas other studies described 47,XXY subjects as friendly, kind, helpful, and relates well with other people.
When the following features are present in an undiagnosed male, a karyotype analysis may be indicated:. This page was last modified at 8 December
In somatic cells in normal females but not in normal malesone X chromosome is inactivated early in development, thus equalizing the expression of X-linked genes in the 2 sexes. Turner syndrome is rare. However, they can become pregnant and give birth if fertilized eggs from a donor are implanted.
The phenotype of the affected person is basically male, tall stature with elongated lower legs and forearms. All rights reserved. Their behavior is often immature and consistent with their IQ level, and they are typically described as passive, cooperative, and not particularly aggressive [ 102526 ].
They tend to be shy and friendly, with occasional irritability and temper tantrums, low frustration tolerance, and difficulty changing routines [ 10 , 25 , 26 ]. Normal males inherit an X and a Y chromosome while females have two X's.
Androgen replacement therapy should begin at puberty, around age 12 years, in increasing dosage sufficient to maintain age appropriate serum concentrations of testosterone, estradiol, FSH, and LH. J Pediatr.