47,XXY; XXY syndrome; XXY trisomy
Klinefelter syndrome is a chromosomal condition that affects male sexual development. Most males with Klinefelter syndrome have one extra copy of the X chromosome in each cell. Some males with the condition have low levels of the hormone testosterone beginning during puberty, which can lead to breast development (gynecomastia) and an increased risk of breast cancer, reduced facial and body hair, and an inability to father children (infertility). Boys with Klinefelter syndrome may also have di...
A genetic disorder in males caused by having an extra X chromosome. Males with this disorder may have larger than normal breasts, a lack of facial and body hair, a rounded body type, and small testicles. They may learn to speak much later than other children and may have difficulty learning to read and write. Klinefelter's syndrome increases the risk of developing testicular cancer.
Klinefelter syndrome as related to Klinefelter's Syndrome
- Klinefelter syndrome - Wikipedia, the free encyclopedia
Klinefelter syndrome or Klinefelter's syndrome (KS), also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosome in males. The ...
- Klinefelter's Syndrome: MedlinePlus - U.S. National ...
Klinefelter's syndrome (KS) is a condition that occurs in men who have an extra X chromosome. The syndrome can affect different stages of physical, language, and ...
- Klinefelter's Syndrome - Genetics Home Reference
Klinefelter syndrome is a chromosomal condition that affects male physical and cognitive development. Its signs and symptoms vary among affected …
- Klinefelter Syndrome: Here Are the Symptoms - MedicineNet
Klinefelter syndrome, also known as the XXY condition, is a term used to describe males who have an extra X chromosome in most of their cells.
- The psychological and social impact of Klinefelter's Syndrome
The psychological and social impact of Klinefelter’s Syndrome: Report for the Klinefelter’s Syndrome Association Authors: Marianne Morris, Sue Jackson & Jude ...
- Klinefelter's Syndrome; extra X chromosome | Patient.co.uk
Klinefelter's syndrome is a genetic condition that only affects males. Affected males have an extra X chromosome. Males with Klinefelter's syndrome have small testes ...
- Klinefelter Syndrome - Medscape Reference
Klinefelter syndrome is a form of primary testicular failure, with elevated gonadotropin levels due to lack of feedback inhibition by the pituitary gland.
- Klinefelter Syndrome XXY Symptoms and Pictures
Left Picture Klinefelter Syndrome Patient with Gynecomastia. Right Picture 16 Months after Gynecomastia Surgery. Learn more about this Klinefelter's Syndrome Patient ...
- Klinefelter syndrome: MedlinePlus Medical Encyclopedia
Klinefelter syndrome is the presence of an extra X chromosome in a male. Causes Most people have 46 chromosomes. Chromosomes contain all of your …
- Klinefelter Syndrome Support Group website
Educational and support information about Klinefelter Syndrome/XXY and its variants.