This is precisely the reason why, in the mildest cases, the morphology of an arcuate uterus is similar to a normal uterus. However, when defined separately from the septate uterus by having a midline prominence of 1.5cm or less, the arcuate uterus was found to make up 70% of uterine abnormalities. In fact, in Europe, the term “arcuate uterus” is not even made because all of these uteri either fall under the category of a normal or septate uterus. The main difference with the former is that the septum is less acute. arcuate uterus can be distinguished from a bicornuate uterus on the basis of its complete fundal unification (i.e.

The literature analysing the influence of uter-ine anomalies on the results of natural reproduction pro- Arcuate uterus.

septate from an arcuate uterus. A septate uterus is a common type of congenital uterine anomaly, and it may lead to an increased rate of pregnancy loss.

A lack of total resorption of the vertical septum can result in an arcuate uterus. A septate uterus is a deformity of the uterus, which happens during fetal development before birth. These authors define a partial uterine septum as having the central point of the septum at an acute angle (to differentiate from an obtuse angle seen with an arcuate configuration) (12) and define the length of the septum to be greater than 1.5 cm, with arcuate defined as having a fundal invagination between 1 and 1.5 cm (13). A lack of resorption of the vertical septum will result in a complete or partial septate uterus. septate uterus. 2.

KEYWORDS: arcuate uterus, IVF/ICSI, live birth rate, pregnancy rate, septate uterus, subseptate uterus Introduction The views on the clinical importance of uterine anomalies in human reproduction have recently been altered (Cohen et al., 2007). A membrane called the septum divides the inner portion of uterus, at its middle. The main imaging differential diagnoses are arcuate uterus and bicornuate uterus. arcuate uterus and septate uterus exist on a spectrum from least to most resorption of the uterovaginal septum, respectively; bicornuate uterus. Some consider it a variation of the septate uterus, while others see it as just a mildly variant shape of the normal uterus. Define the external contour of the fundus.