Where is uterine cancer

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Female reproductive system Open pop-up dialog box Close. Female reproductive system The ovaries, fallopian tubes, uterus, cervix and vagina vaginal canal make up the female reproductive system. Share on: Facebook Twitter. Show references AskMayoExpert.

Endometrial cancer. Rochester, Minn. Niederhuber JE, et al. Uterine cancer. In: Abeloff's Clinical Oncology. Philadelphia, Pa. Accessed May 24, Lobo RA, et al. Neoplastic diseases of the uterus.

In: Comprehensive Gynecology. Uterine neoplasms. Plymouth Meeting, Pa. Palliative care. They sometimes develop from atypical hyperplasia, an abnormal overgrowth of cells in the endometrium. See Endometrial Cancer Risk Factors for more on this.

A small number of endometrial cancers are type 2 endometrial cancer. Type 2 cancers are more likely to grow and spread outside the uterus, they have a poorer outlook than type 1 cancers. Doctors tend to treat these cancers more aggressively. Uterine carcinosarcoma CS starts in the endometrium and has features of both endometrial carcinoma and sarcoma.

The sarcoma is cancer that starts in muscle cells of the uterus. In the past, CS was considered a different type of uterine cancer called uterine sarcoma see below , but doctors now believe that CS is an endometrial carcinoma that's so abnormal it no longer looks much like the cells it came from it's poorly differentiated. Uterine CS is a type 2 endometrial carcinoma.

CS tumors are also known as malignant mixed mesodermal tumors or malignant mixed mullerian tumors MMMTs.

Uterine sarcomas start in the muscle layer myometrium or supporting connective tissue of the uterus.