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Vaginal adenosis : ウィキペディア英語版 | Vaginal adenosis Vaginal adenosis is a benign abnormality in the vagina, commonly thought to be caused by intrauterine and neonatal exposure of diethylstilbestrol and other progestagens and nonsteroidal estrogens, however it has also been observed in otherwise healthy women and has been considered at times ideopathic or congenital. Postpubertal lesions have also been observed to grow ''de novo''. It has a rather common incidence, of about 10% of adult women.〔 ==Causes== Vaginal adenosis is characterised by the presence of metaplastic cervical or endometrial epithelium within the vaginal wall, considered as derived from Müllerian epithelium islets in later life. In women who were exposed to certain chemicals, vaginal adenosis may arise in up to 90%. Since these contraceptives were discontinued, incidence has dropped dramatically. Risk is however still present in subsequent generations due to recent exposure. It is thought steroid hormones play a stimulatory growth in adenosis formation. Vaginal adenosis is also often observed in adenocarcinoma patients.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Vaginal adenosis」の詳細全文を読む
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