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Müllerian duct anomalies are those structural anomalies caused by errors in Müllerian duct development as an embryo forms. Factors contributing to them include genetics and maternal exposure to substances that interfere with fetal development.
Müllerian agenesis, also known as Müllerian aplasia, vaginal agenesis, or Mayer–Rokitansky–Küster–Hauser syndrome (MRKH syndrome), is a congenital malformation characterized by a failure of the Müllerian ducts to develop, resulting in a missing uterus and variable degrees of vaginal hypoplasia of its upper portion.
The female reproductive system is composed of two embryological segments: the urogenital sinus and the paramesonephric ducts. The two are conjoined at the sinus tubercle. [2] [3] Paramesonephric ducts are present on the embryo of both sexes.
A 1904 gynecology textbook that describes some vaginal anomalies. Vaginal anomalies are abnormal structures that are formed (or not formed) during the prenatal development of the female reproductive system and are rare congenital defects that result in an abnormal or absent vagina.
Surgical intervention depends on the extent of the individual problem. With a didelphic uterus surgery is not usually recommended. A uterine septum can be resected in a simple out-patient procedure that combines laparoscopy and hysteroscopy. This procedure greatly decreases the rate of miscarriage for women with this anomaly. [citation needed]
Persistent Müllerian duct syndrome (PMDS) is the presence of Müllerian duct derivatives (fallopian tubes, uterus, and/or the upper part of the vagina) [1] in what would be considered a genetically and otherwise physically normal male. [2]
Sinus tubercle (also known as sinual tubercle [1] or Müllerian eminence) is the proliferation of endoderm induced by the paramesonephric ducts.It is located in the developing fetus between the orifices of the mesonephric ducts on the urogenital sinus. [1]
Compartment boundaries establish these organizing centers [5] [7] by providing the source of morphogens [9] that are responsible for the positional information required for development and regeneration. [9] [10] The inability of cell competition to occur across the boundary, indicates that each compartment serves as an autonomous unit of growth.