Types of Cancer » Endometrial Cancer

endometrial cancer (EN-doh-MEE-tree-ul KAN-ser) Cancer that forms in the tissue lining the uterus. Most endometrial cancers are adenocarcinomas (cancers that begin in cells that make and release mucus and other fluids).

endometrial Having to do with the endometrium (the layer of tissue that lines the uterus).

endometrium (en-do-MEE-tree-um) The layer of tissue that lines the uterus.

endometrial biopsy A procedure in which a sample of tissue is taken from the endometrium (inner lining of the uterus) for examination under a microscope. A thin tube is inserted through the cervix into the uterus, and gentle scraping and suction are used to remove the sample.

endometrial disorder Abnormal cell growth in the endometrium (the lining of the uterus).

endometrial hyperplasia An abnormal overgrowth of the endometrium (the layer of cells that lines the uterus). There are four types of endometrial hyperplasia: simple endometrial hyperplasia, complex endometrial hyperplasia, simple endometrial hyperplasia with atypia, and complex endometrial hyperplasia with atypia. These differ in terms of how abnormal the cells are and how likely it is that the condition will become cancerous.

endometriosis (en-do-mee-tree-O-sis) A benign condition in which tissue that looks like endometrial tissue grows in abnormal places in the abdomen.

stage I endometrial cancer Cancer is found in the uterus only. Stage I is divided into stage IA, IB, and IC, based on how far the disease has spread. In stage IA, cancer is in the endometrium only; in stage IB, cancer has spread into the inner half of the myometrium (muscle layer of the uterus); in stage IC, cancer has spread into the outer half of the myometrium.

stage II endometrial cancer Cancer has spread from the uterus to the cervix, but not beyond the cervix. Stage II is divided into stage IIA and IIB, based on how far the cancer has spread into the cervix. In stage IIA, cancer has spread to the glands where the cervix and uterus meet. In stage IIB, cancer has spread into the connective tissue of the cervix.

stage III endometrial cancer Cancer has spread beyond the uterus and cervix, but has not spread beyond the pelvis. Stage III is divided into stage IIIA, IIIB, and IIIC, based on how far the cancer has spread within the pelvis. In stage IIIA, cancer has spread to (1) the outermost layer of the uterus; and/or (2) tissue just beyond the uterus; and/or (3) the peritoneum (tissue that lines the abdominal wall and organs). In stage IIIB, cancer has spread beyond the uterus and cervix, into the vagina. In stage IIIC, cancer has spread to lymph nodes near the uterus.

stage IV endometrial cancer Cancer has spread beyond the pelvis. Stage IV is divided into stage IVA and IVB, based on how far the cancer has spread. In stage IVA, cancer has spread to the bladder or bowel wall. In stage IVB, cancer has spread to other parts of the body beyond the pelvis, including lymph nodes in the abdomen and/or groin.