EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
EMBRYONIC DEVELOPMENT & STEM CELL COMPENDIUM
110. Uterovaginal Malformations of The Female
Review of MEDICAL EMBRYOLOGY Book by BEN PANSKY, Ph.D, M.D.
- Uterovaginal malformations
- AS A RESULT OF PARTIAL OR TOTAL FAILURE OF FUSION of the terminal portion of the paramesonephric (m?llerian) ducts, we may see
- Uterus didelphis: double uterus with a double cervix and double vagina
- Uterus bicornis (bicornuate or bifid): uterus is more or less divided into 2 lateral horns.
- The cervix may be single: uterus bicornis unicollis
- The cervix may be double: uterus bicornis bicollis
- Uterus biforis: cervix is divided into 2 by a septum
- Uterus cordiformis: an incomplete uterus bicornis with a wedge-shaped depression at the fundus (uterus becomes heart-shaped)
- Uterus parvicollis: abnormal disproportionately small cervix
- Absence of uterus
- BY PARTIAL OR TOTAL ATRESIA of the terminal portion of one or both paramesonephric (m?llerian) ducts, we may see
- Unilateral atresia with uterus bicornis unicollis or rudimentary horn
- May also see a uterus unicornis: one-horned
- Partial bilateral atresia with atresia of the cervix
- Partial bilateral atresia with atresia of the vagina
- Absence of the vagina: seen in 1/4000 females
- BY FAILURE OF RESORPTION OF THE UTEROVAGINAL SEPTUM after fusion of the paramesonephric (m?llerian) ducts, we may see
- Complete bilocular uterus: a uterus having 2 cavities (also called U. duplex)
- Bilocular unicervical uterus
- Bilocular bicervical uterus
