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Klinefelter Syndrome - MedlinePlus
Klinefelter syndrome is a genetic condition that occurs in males when they have an extra X chromosome.
https://medlineplus.gov/ency/article/000382.htm
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Klinefelter Syndrome Treatment and Management - eMedicine
Early identification and anticipatory guidance are extremely helpful, although Klinefelter syndrome is rarely diagnosed in prepubertal males. Treatment should address 3 major facets of the disease: hypogonadism, gynecomastia, and psychosocial problems.
http://emedicine.medscape.com/article/945649-treatment?pa=nXa11ISAPzMTUtWLnqD9kOVQBNlXRgqCh2KLJzIW7PtYa2CibJSXPhksRnQDVgIMcTjXoTc7K9JdzLX0SzNSwMxINcH%2BsxRbWLj4dpGggpU%3D
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Klinefelter Syndrome - Mayo Clinic
Klinefelter syndrome occurs as a result of a random error that causes a male to be born with an extra sex chromosome. Of the 46 human chromosomes, the two sex chromosomes determine a person's sex. In females, both sex chromosomes are X (written as XX). Males have an X and a Y sex chromosome (XY).
http://www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/basics/causes/con-20033637
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Klinefelter Syndrome, Topic Overview - WebMD
Klinefelter syndrome is a genetic disorder that affects males. Klinefelter syndrome occurs when a boy is born with one or more extra X chromosomes.
http://www.webmd.com/men/tc/klinefelter-syndrome-topic-overview#1
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Klinefelter Syndrome - NHS Choices
NHS Choices information on Klinefelter syndrome, with links to other useful resources.
http://www.nhs.uk/Conditions/klinefelters-syndrome/Pages/Introduction.aspx
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Klinefelter Syndrome - Mayo Clinic
Klinefelter syndrome - Comprehensive overview covers treatment, diagnosis of this genetic condition affecting males.
http://www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/basics/definition/con-20033637
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Learning About Klinefelter Syndrome - NIH
Humans have 46 chromosomes, which contain all of a person's genes and DNA. Two of these chromosomes, the sex chromosomes, determine a person?s gender. Both of the sex chromosomes in females are called X chromosomes. (This is written as XX.) Males have an X and a Y chromosome (written as XY). The two sex chromosomes help a person develop fertility and the sexual characteristics of their gender.
https://www.genome.gov/19519068
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Klinefelter Syndrome - Genetics Home Reference
Klinefelter syndrome is a chromosomal condition that affects male physical and cognitive development. Its signs and symptoms vary among affected individuals. Affected individuals typically have small testes that do not produce as much testosterone as usual. Testosterone is the hormone that directs male sexual development before birth and during puberty. Learn more here.
http://ghr.nlm.nih.gov/condition/klinefelter-syndrome
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Klinefelter's Syndrome; Extra X Chromosome. Genetic Disorder - Patient
Klinefelter's syndrome is a genetic condition that only affects males. Affected males have an extra X chromosome.
http://patient.info/health/klinefelters-syndrome-leaflet
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Klinefelter Syndrome: Background, Pathophysiology, Epidemiology - Medscape
In 1942, Klinefelter et al published a report on 9 men who had enlarged breasts, sparse facial and body hair, small testes, and an inability to produce sperm. In 1959, these men with Klinefelter syndrome were discovered to have an extra X chromosome (genotype XXY) instead of the usual male sex complement (genotype XY).
http://emedicine.medscape.com/article/945649-overview
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Klinefelter Syndrome: Here Are the Symptoms
Learn about Klinefelter syndrome (XXY condition), a genetic disease affecting males. Symptoms include low testosterone levels, reduced strength, male breasts, wide hips, and reduced muscle tone.
http://www.medicinenet.com/klinefelter_syndrome/article.htm
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Klinefelter Syndrome - TeensHealth
This genetic condition only affects guys and is also called "XXY." It can affect a guy's ability to learn and his sexual development, but doctors can treat it. Find out more.
http://kidshealth.org/en/teens/klinefelter.html
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Klinefelter's Syndrome Association
We offer support and information to all affected by, or having an interest in, Klinefelter's Syndrome.
http://www.ksa-uk.net
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Klinefelter Syndrome - NORD (National Organization for Rare Disorders)
NORD gratefully acknowledges Jeannie Visootsak, MD, FAAP, Associate Professor, Developmental-Behavioral Pediatrics, Department of Human Genetics and Pediatrics, Emory University School of Medicine, for assistance in the preparation of this report.
http://rarediseases.org/rare-diseases/klinefelter-syndrome/
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Klinefelter Syndrome - Wikipedia, the Free Encyclopedia
Wikipedia's information about Kilinefelter syndrome.
https://en.wikipedia.org/wiki/Klinefelter_syndrome
