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Doctor insights on: Klinefelter's Syndrome Testicular Size

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What is testicular feminization syndrome?

What is testicular feminization syndrome?

Androgen insensitiv: It is now called androgen insensitivity syndrome. It occurs when a genetic male (x/y) is insensitive to androgens. In extreme insensitivity, the child looks like a normal girl, until lack of menstruation at puberty. Then it is discovered that there is no uterus, and abdominal (undescended) testicles, which need to be removed. ...Read more

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Is 46xxy klinefelter's syndrome?

Is 46xxy klinefelter's syndrome?

Yes: Presence of more than one x chromosome with one y chromosome is klinefelter syndrome. ...Read more

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Is XXY klinefelter's syndrome related at all to marfan's syndrome?

Is XXY klinefelter's syndrome related at all to marfan's syndrome?

No: The two syndromes have some similar features, but they are different syndromes that are unrelated. Klinefelter syndrome is caused by ahaving at least one extra x chromosome in a person who has a y chromosome (normal male=46 xy, klinefelter=47xxy). Typical marfan syndrome is caused by a mutation in fbn1, coding for fibrillin-1. ...Read more

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Is there high FSH in males with klinefelter's syndrome?

Usually: The gonadotropin factors FSH & lh are usually increased in thease kids after 10-12 yrs of age when early adolescence would normally begin. ...Read more

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What is klienfelter (xxy) syndrome?

What is klienfelter (xxy) syndrome?

XXY: The klinefelter has a pattern of the sex chromosomes as XXY ( with male features). The extra x comes from an egg that had 2 x's at conception when the male y was added.The resulting fetus with 47 chromosomes is compatible with life.The baby will grow up with male sex characteristics, but often a short penis and sterility by adolescence along with other issues. ...Read more

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What is klienfelter (xxy) syndrome?

What is klienfelter (xxy) syndrome?

XXY: The klinefelter has a pattern of the sex chromosomes as XXY ( with male features). The extra x comes from an egg that had 2 x's at conception when the male y was added.The resulting fetus with 47 chromosomes is compatible with life.The baby will grow up with male sex characteristics, but often a short penis and sterility by adolescence along with other issues. ...Read more

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Is klinefelter's syndrome dominent or recessive?

Is klinefelter's syndrome dominent or recessive?

Error in formation: Humans have 23 pairs of chromosomes. During the formation of the egg, each pair splits and one of each travels to the egg. At conception, the sperm brings 22 + an X or Y & the new embryo now has 23 pairs (two of each). In Kleinfelter, the egg retains 2 X chromosomes instead of 1 & the sperm brings a Y.The fetus then has 23 pairs + the extra X. This is an error in formation, not an inherited trait ...Read more

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Docs, could a man with klinefelters syndrome still reproduce?

Docs, could a man with klinefelters syndrome still reproduce?

Sadly, no.: See http://www.klinefeltersyndrome.org for information on associated medical & developmental problems. KS is usually caused by an extra X Chromosome in each cell of the body (47,XXY), although variants exist. Extra copies of genes on the X Chromosome interfere with male sexual development, prevent the testes from functioning normally, reduce testosterone levels & cause infertility. ...Read more

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Does the Asperger syndrome have xyy chromosome?

Does the Asperger syndrome have xyy chromosome?

Not by definition: Someone with xyy may has asperger's disorder but that is not part of the disorder itself. ...Read more

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What biological sex is determined in klinefelters syndrome?

What biological sex is determined in klinefelters syndrome?

Male.: Klinefelter's syndrome is a male xx/y individual. In otherwords, an y-chromosomal male with two female chromosomes. Other than having after puberty very high estrogen levels and lower than normal testosterone, they actually have the highest incidence of connective tissue diseases in the lupus family, but the percentage still is not high! ...Read more

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Is it possible klinefelter syndrome through genes?

Is it possible klinefelter syndrome through genes?

Yes: Klinefelter syndrome is the presence of an extra x chromosome in a male (xxy instead of xy). ...Read more

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What is klinefelters syndrome like?

Males with 47 XXY: Klinefelter's syndrome is a genetic disorder in which there is at least one extra x chromosome to a normal human male karyotype, for a total of 47 chromosomes. The principal effects are hypogonadism and reduced fertility. By adulthood, XXY males look similar to males without the condition, although they are often taller. Gynecomastia (enlarged breats) is present in about a third of individuals. ...Read more

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Is teenage boy with breast that kind of look like gynaecomastia is related to klinefelter's syndrome?

Is teenage boy with breast that kind of look like gynaecomastia is related to klinefelter's syndrome?

Normal puberty: Pubertal gynecomastia may effect the majority of males as the begin their pubertal transition. Most are minimal and last 6m to a year, but occasional longer episodes do occur (1-3yr) it is important to separate the true process from fatty breast enlargement that produces a false gynecomastia in overweight kids. Spongy glandular tissue directly under the nipple is absent in the false case. ...Read more

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Scrotal ultrasound measured testicular length at 5 cm, bilateral hydrocele is 1.7 cc. What is the actual testicular length?

Scrotal ultrasound measured testicular length  at 5 cm, bilateral hydrocele is 1.7 cc. What is the actual testicular length?

5 cm.: A hydrocele is not 'counted' in the length of the testis. It is a fluid collection around the testis. The testis is solid and usually measured in 3 dimensions. ...Read more

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Does kinefelter's syndrome increase the risk of breast cancer?

Does kinefelter's syndrome increase the risk of breast cancer?

Yes, it does: Klinefelter syndrome refers to a genetic condition where a male inherits two x chromosomes in addition to the y chromosome (xxy). This causes lower levels of male hormones (testosterone) and higher levels of female hormones (estrogens). Men with klinefelter syndrome often have prominent breast tissue, smaller penises and testicles, and they do have a higher risk of developing male breast cancer. ...Read more

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What percentage of men with bilateral undescended testes end up with normal fertility?

What percentage of men with bilateral undescended testes end up with normal fertility?

Less than 30%: Percentage depends upon original position of undescended testes when corrected, i.e. Intra-abdominal udts are associated with more infertility than low inguinal udts. Associated abnormality such as poor attachment of epididymis has a worse prognosis. Age at correction is very significant, the younger the better. Both testes undescended beyond puberty can never be associated with normal fertility. ...Read more

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What chromosome is affected by Marfan syndrome?

Chromosome 15: Marfan syndrome is caused by a mutation in the fbn1 gene on chromosome 15. The "address" for this gene is 15q21.1. This gene codes for a protein called fibrillin-1. Inheritance is autosomal dominant. ...Read more

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Is klinefelter's syndrome a somatic or genetic mutation?

Is klinefelter's syndrome a somatic or genetic mutation?

More than one x: It is a genetic anomaly in which a phenotypic male has more than one x chromosome, in addition to the y chromosome. The disorder is associated with poor testicular development and infertility, obesity. ...Read more