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The junction zone (JZ), or a small distinct hormone-dependent region at the endometrial-myometrial interface, may be assessed by three-dimensional transvaginal ultrasound (3D TVUS) and MRI. Features of adenomyosis are disruption, thickening, enlargement or invasion of the junctional zone. [ 21 ]
Anyway, the phenomenon of smooth muscle cell metaplasia occurring in association with endometriosis (endomyometriosis), as well as of smooth muscle differentiation at endometrio-myometrial junction independently from actually engendering uterus-like configurations in several locations of the pelvis, have been pointed out by several authors. [7] [8]
The myometrium is located between the endometrium (the inner layer of the uterine wall) and the serosa or perimetrium (the outer uterine layer).. The inner one-third of the myometrium (termed the junctional or sub-endometrial layer) appears to be derived from the Müllerian duct, while the outer, more predominant layer of the myometrium appears to originate from non-Müllerian tissue and is ...
Bandl's ring (also known as pathological retraction ring) is the abnormal junction between the two segments of the uterus; it is a late sign associated with obstructed labor. [1] Prior to the onset of labor, the junction between the lower and upper uterine segments is a slightly thickened ring.
Asherman's syndrome (AS) is an acquired uterine condition that occurs when scar tissue forms inside the uterus and/or the cervix. [1] It is characterized by variable scarring inside the uterine cavity, where in many cases the front and back walls of the uterus stick to one another.
Exposure to DES induced multiple uterine abnormalities including constriction bands, hypoplasticity in the uterine cavity and irregular borders. Females exposed to this teratogen in utero presented most commonly with a T-shaped uterus , resulting in increased rates of ectopic pregnancy , spontaneous abortions , and an overall increased risk of ...
Surgery. A retroverted uterus ( tilted uterus , tipped uterus ) is a uterus that is oriented posteriorly, towards the rectum in the back of the body. This is in contrast to the typical uterus, which is oriented forward (slightly " anteverted ") toward the bladder , with the anterior part slightly concave.
It is well known that myomectomy surgery is associated with a higher risk of uterine rupture in later pregnancy. [8] Thus, women who have had myomectomy (with the exception of small submucosal myoma removal via hysteroscopy, or largely pedunculated myoma removal) should get Cesarean delivery to avoid the risk of uterine rupture that is commonly ...