answers: endometriosis
context: Rectovestibular fistula A rectovestibular fistula, also referred to simply as a vestibular fistula, is an anorectal congenital disorder where an abnormal connection (fistula) exists between the rectum and the vulval vestibule of the female genitalia. If the fistula occurs within the hymen, it is known as a rectovaginal fistula, a much rarer condition. If a colostomy is not performed immediately after birth, patients with rectovestibular fistulae may present later in life with complications including severe constipation and megacolon (abnormal dilation of the colon), requiring colostomy or further surgery. A rectovestibular fistula occurs when the colon or rectum deviates anteriorly. This </s> Aortic aneurysm An aortic aneurysm is an enlargement (dilation) of the aorta to greater than 1.5 times normal size. They usually cause no symptoms except when ruptured. Occasionally, there may be abdominal, back, or leg pain. They are most commonly located in the abdominal aorta, but can also be located in the thoracic aorta. Aortic aneurysms cause weakness in the wall of the aorta and increase the risk of aortic rupture. When rupture occurs, massive internal bleeding results and, unless treated immediately, shock and death can occur. Screening with ultrasound is indicated in those at high risk, prevention is by </s> Endometrioma Endometrioma is the presence of endometrial tissue in and sometimes on the ovary. It is the most common form of endometriosis. More broadly, endometriosis is the presence of endometrial tissue located outside the uterus. The presence of endometriosis can result in the formation of scar tissue, adhesions and an inflammatory reaction. It is a benign growth. An endometrioma is most often found in the ovary. It can also develop in the cul-de-sac (the space behind the uterus), the surface of the uterus, and between the vagina and rectum. Endometrial tissue is the mucous membrane that normally lines the uterus.
question: abnormal growth of the lining of the uterus outside the uterus is called