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Endometriosis and ovarian cancer risk. This study was a population-based cohort study. The research matched 78,476 women with endometriosis with 372,430 women without known endometriosis ...
[25] [32] [26] Endometriosis is associated with certain types of cancers, notably some types of ovarian cancer, [33] non-Hodgkin's lymphoma and brain cancer. [34] Endometriosis is however unrelated to endometrial cancer. [35] Rarely, endometriosis can cause endometrium-like tissue to be found in other parts of the body.
Ovarian endometrioid tumors are part of the surface epithelial tumor group of ovarian neoplasms (10–20% of which are the endometrioid type). Benign and borderline variants are rare, as the majority are malignant. There is an association with endometriosis and concurrent primary endometrial carcinoma (endometrial cancer).
Ovarian cancer is a cancerous tumor of an ovary. [10] It may originate from the ovary itself or more commonly from communicating nearby structures such as fallopian tubes or the inner lining of the abdomen. [3] [11] The ovary is made up of three different cell types including epithelial cells, germ cells, and stromal cells. [12]
The risk of type I ovarian cancer specifically was “especially high,” according to the study, at around 7.5-fold higher among women with endometriosis, and the risk of developing type II ...
Conversely, a temporal association with menopausal hormone therapy and incidence of HGSC was found, [11] and polycystic ovarian syndrome (PCOS) was shown to contribute to a doubling of the risk of ovarian cancer. [12] Endometriosis can increase risk for other ovarian cancer subtypes, but is not associated with HGSC. [13]
Endometrioma is found in 17–44% patients with endometriosis. [2] More broadly, endometriosis is the presence of tissue similar to, but distinct from, endometrial tissue located outside the uterus. The presence of endometriosis can result in the formation of scar tissue, adhesions and an inflammatory reaction.
Frozen pelvis is often caused by endometriosis. [1]It can also be caused by cancer, such as late-stage ovarian cancers and rectal cancers. [1] [2] Abdominal actinomycosis can produce frozen pelvis in its later stages, especially after removal of an intrauterine contraceptive device. [3]
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