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Mayer-Rokitansky-Küster-Hauser syndrome : ウィキペディア英語版
Müllerian agenesis

Müllerian agenesis, also called Mayer-Rokitansky-Küster-Hauser syndrome or MRKH, named after August Franz Joseph Karl Mayer, Carl Freiherr von Rokitansky, Hermann Kuster, and G. A. Hauser, is a congenital malformation characterized by a failure of the Müllerian duct to develop, resulting in a missing uterus and variable degrees of vaginal hypoplasia of its upper portion. Müllerian agenesis (including absence of the uterus, cervix and/or vagina) is the etiology in 15% of cases of primary amenorrhoea.
==Signs and symptoms==
An individual with this condition is hormonally normal; that is, they will enter puberty with development of secondary sexual characteristics including thelarche and adrenarche (pubic hair). Their chromosome constellation will be 46,XX. Ovaries are intact and ovulation usually occurs. Typically, the vagina is shortened and intercourse may, in some cases, be difficult and painful. Medical examination supported by gynecologic ultrasonography demonstrates a complete or partial absence of the cervix, uterus, and vagina.
If there is no uterus, people with MRKH cannot carry a pregnancy. However, it is possible for them to have genetic offspring by in vitro fertilization (IVF) and surrogacy. Treatment by uterine transplantation is still in its infancy.
People with MRKH typically discover the condition when, during puberty years, the menstrual cycle does not start (primary amenorrhoea). Some find out earlier through surgeries for other conditions, such as a hernia.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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