The following is an excerpt....
BASICS
Description
- The normal vagina is lined by squamous epithelium. Adenosis is characterized by the presence of columnar epithelium or glandular tissue in the wall of the vagina.
- At about the 15th week of embryologic development, the Müllerian system, which forms the upper 2/3 of the vagina, fuses with the invaginating cloaca or urogenital sinus to form the lower 1/3 of the vagina. Squamous metaplasia from the cloacal region then produces a squamous epithelium through the vagina.
- Adenosis occurs when this squamous epithelium fails to epithelialize the vagina completely.
- 3 main types of adenosis epithelium described:
- Endocervical
- Endometrial
- Tubal
- System(s) affected: Reproductive
ALERT:
Geriatric Considerations
- Adenosis is a disorder of the young female. By menopause, the vagina ...
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