Definitions for klinefelter syndrome
This page provides all possible meanings and translations of the word klinefelter syndrome
Klinefelter's syndrome, Klinefelter syndrome, XXY-syndrome(noun)
syndrome in males that is characterized by small testes and long legs and enlarged breasts and reduced sperm production and mental retardation; a genetic defect in which an extra X chromosome (XXY) is present in the male
A genetic condition in which a male is born with two X chromosome.
U.S. National Library of Medicine
A form of male HYPOGONADISM, characterized by the presence of an extra X CHROMOSOME, small TESTES, seminiferous tubule dysgenesis, elevated levels of GONADOTROPINS, low serum TESTOSTERONE, underdeveloped secondary sex characteristics, and male infertility (INFERTILITY, MALE). Patients tend to have long legs and a slim, tall stature. GYNECOMASTIA is present in many of the patients. The classic form has the karyotype 47,XXY. Several karyotype variants include 48,XXYY; 48,XXXY; 49,XXXXY, and mosaic patterns ( 46,XY/47,XXY; 47,XXY/48,XXXY, etc.).
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"klinefelter syndrome." Definitions.net. STANDS4 LLC, 2015. Web. 8 Jul 2015. <http://www.definitions.net/definition/klinefelter syndrome>.