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Stages of Endometrial Cancer
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After endometrial cancer has been diagnosed, tests are
done to find out if cancer cells have spread within the uterus or to other
parts of the body.
The process used to find out whether the cancer has spread within the uterus or to other parts of the body
is called staging. The information gathered from the
staging process determines the stage of the disease. It is important
to know the stage in
order to plan treatment. Certain tests and procedures are used in the staging process. A hysterectomy (an operation in
which the uterus is removed) will usually be done to help find out how far the
cancer has spread.
There are three ways that cancer spreads in the body.
The three ways that cancer spreads in the body are:
- Through tissue. Cancer invades the surrounding normal tissue.
- Through the lymph system. Cancer invades the lymph system and travels through the lymph vessels to other places in the body.
- Through the blood. Cancer invades the veins and capillaries and travels through the blood to other places in the body.
When cancer cells break away from the primary (original) tumor and travel through the lymph or blood to other places in the body, another (secondary) tumor may form. This process is called metastasis. The secondary (metastatic) tumor is the same type of cancer as the primary tumor. For example, if breast cancer spreads to the bones, the cancer cells in the bones are actually breast cancer cells. The disease is metastatic breast cancer, not bone cancer.
The following stages are used for endometrial
cancer:
Stage I
In stage I, cancer is
found in the uterus only. Stage I is divided
into stages IA, IB, and IC, based on how far the cancer has spread.
Stage II
In stage II, cancer has spread from the uterus to the cervix, but has not spread outside the uterus. Stage II
is divided into stages IIA and IIB, based on how far the cancer has spread
into the cervix.
Stage III
In stage III, cancer has spread beyond the uterus and cervix, but has not spread beyond the pelvis. Stage III is divided into
stages IIIA, IIIB, and IIIC, based on how far the cancer has spread within the pelvis.
Stage IV
In stage IV, cancer has spread beyond the pelvis. Stage IV is divided into stages IVA and IVB,
based on how far the cancer has spread.
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Glossary Terms
abdomen (AB-doh-men)
The area of the body that contains the pancreas, stomach, intestines, liver, gallbladder, and other organs.
bladder (BLA-der)
The organ that stores urine.
blood
A tissue with red blood cells, white blood cells, platelets, and other substances suspended in fluid called plasma. Blood takes oxygen and nutrients to the tissues, and carries away wastes.
bone cancer (... KAN-ser)
Primary bone cancer is cancer that forms in cells of the bone. Some types of primary bone cancer are osteosarcoma, Ewing sarcoma, malignant fibrous histiocytoma, and chondrosarcoma. Secondary bone cancer is cancer that spreads to the bone from another part of the body (such as the prostate, breast, or lung).
bowel (BOW-ul)
The long, tube-shaped organ in the abdomen that completes the process of digestion. The bowel has two parts, the small bowel and the large bowel. Also called intestine.
breast cancer (brest KAN-ser)
Cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.
cancer (KAN-ser)
A term for diseases in which abnormal cells divide without control. Cancer cells can invade nearby tissues and can spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is cancer that starts in blood-forming tissue such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the blood. Lymphoma and multiple myeloma are cancers that begin in the cells of the immune system. Central nervous system cancers are cancers that begin in the tissues of the brain and spinal cord.
capillary
The smallest type of blood vessel. A capillary connects an arteriole (small artery) to a venule (small vein) to form a network of blood vessels in almost all parts of the body. The wall of a capillary is thin and leaky, and capillaries are involved in the exchange of fluids and gases between tissues and the blood.
cell (sel)
The individual unit that makes up the tissues of the body. All living things are made up of one or more cells.
cervix (SER-viks)
The lower, narrow end of the uterus that forms a canal between the uterus and vagina.
connective tissue
Supporting tissue that surrounds other tissues and organs. Specialized connective tissue includes bone, cartilage, blood, and fat.
endometrium (en-do-MEE-tree-um)
The layer of tissue that lines the uterus.
gland
An organ that makes one or more substances, such as hormones, digestive juices, sweat, tears, saliva, or milk. Endocrine glands release the substances directly into the bloodstream. Exocrine glands release the substances into a duct or opening to the inside or outside of the body.
groin
The area where the thigh meets the abdomen.
hysterectomy (HIS-teh-REK-toh-mee)
Surgery to remove the uterus and, sometimes, the cervix. When the uterus and the cervix are removed, it is called a total hysterectomy. When only the uterus is removed, it is called a partial hysterectomy.
invasive cancer (in-VAY-siv KAN-ser)
Cancer that has spread beyond the layer of tissue in which it developed and is growing into surrounding, healthy tissues. Also called infiltrating cancer.
lymph (limf)
The clear fluid that travels through the lymphatic system and carries cells that help fight infections and other diseases. Also called lymphatic fluid.
lymph node (limf node)
A rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Lymph nodes filter lymph (lymphatic fluid), and they store lymphocytes (white blood cells). They are located along lymphatic vessels. Also called lymph gland.
lymph vessel (limf ...)
A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. Also called lymphatic vessel.
lymphatic system (lim-FA-tik SIS-tem)
The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases. This system includes the bone marrow, spleen, thymus, lymph nodes, and lymphatic vessels (a network of thin tubes that carry lymph and white blood cells). Lymphatic vessels branch, like blood vessels, into all the tissues of the body.
metastasis (meh-TAS-tuh-sis)
The spread of cancer from one part of the body to another. A tumor formed by cells that have spread is called a “metastatic tumor” or a “metastasis.” The metastatic tumor contains cells that are like those in the original (primary) tumor. The plural form of metastasis is metastases (meh-TAS-tuh-SEEZ).
myometrium (mye-o-MEE-tree-um)
The muscular outer layer of the uterus.
pelvis
The lower part of the abdomen, located between the hip bones.
peritoneum (PAYR-ih-toh-NEE-um)
The tissue that lines the abdominal wall and covers most of the organs in the abdomen.
primary tumor
The original tumor.
stage
The extent of a cancer in the body. Staging is usually based on the size of the tumor, whether lymph nodes contain cancer, and whether the cancer has spread from the original site to other parts of the body.
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.
staging (STAY-jing)
Performing exams and tests to learn the extent of the cancer within the body, especially whether the disease has spread from the original site to other parts of the body. It is important to know the stage of the disease in order to plan the best treatment.
tissue (TISH-oo)
A group or layer of cells that work together to perform a specific function.
tumor (TOO-mer)
An abnormal mass of tissue that results when cells divide more than they should or do not die when they should. Tumors may be benign (not cancerous), or malignant (cancerous). Also called neoplasm.
uterus (YOO-ter-us)
The small, hollow, pear-shaped organ in a woman's pelvis. This is the organ in which a baby grows. Also called womb.
vagina (vuh-JY-nuh)
The muscular canal extending from the uterus to the exterior of the body. Also called birth canal.
vein (vayn)
A blood vessel that carries blood to the heart from tissues and organs in the body.
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