cancer
(KAN-ser)
A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is a 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. Also called malignancy.
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
abnormal (ab-NOR-mul)
Not normal. An abnormal lesion or growth may be cancer, premalignant (likely to become cancer), or benign (not cancer).
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
blood (blud)
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.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
bone marrow (bone MAYR-oh)
The soft, sponge-like tissue in the center of most bones. It produces white blood cells, red blood cells, and platelets.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
cancer (KAN-ser)
A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is a cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is a 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. Also called malignancy.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
carcinoma (KAR-sih-NOH-muh)
Cancer that begins in the skin or in tissues that line or cover internal organs.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
cartilage (KAR-tih-lij)
A tough, flexible tissue that lines joints and gives structure to the nose, ears, larynx, and other parts of the body.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
central nervous system (SEN-trul NER-vus SIS-tem)
The brain and spinal cord. Also called CNS.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
immune system (ih-MYOON SIS-tem)
The complex group of organs and cells that defends the body against infections and other diseases.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
leukemia (loo-KEE-mee-uh)
Cancer that starts in blood-forming tissue such as the bone marrow and causes large numbers of blood cells to be produced and enter the bloodstream.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
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.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
lymphoma (lim-FOH-muh)
Cancer that begins in cells of the immune system. There are two basic categories of lymphomas. One kind is Hodgkin lymphoma, which is marked by the presence of a type of cell called the Reed-Sternberg cell. The other category is non-Hodgkin lymphomas, which includes a large, diverse group of cancers of immune system cells. Non-Hodgkin lymphomas can be further divided into cancers that have an indolent (slow-growing) course and those that have an aggressive (fast-growing) course. These subtypes behave and respond to treatment differently. Both Hodgkin and non-Hodgkin lymphomas can occur in children and adults, and prognosis and treatment depend on the stage and the type of cancer.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
malignancy (muh-LIG-nun-see)
A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Malignant cells can also spread to other parts of the body through the blood and lymph systems. There are several main types of malignancy. Carcinoma is a malignancy that begins in the skin or in tissues that line or cover internal organs. Sarcoma is a malignancy that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is a malignancy 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 malignancies that begin in the cells of the immune system. Central nervous system cancers are malignancies that begin in the tissues of the brain and spinal cord. Also called cancer.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
multiple myeloma (MUL-tih-pul MY-eh-LOH-muh)
A type of cancer that begins in plasma cells (white blood cells that produce antibodies). Also called Kahler disease, myelomatosis, and plasma cell myeloma.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
sarcoma (sar-KOH-muh)
A cancer of the bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
spinal cord (SPY-nul kord)
A column of nerve tissue that runs from the base of the skull down the back. It is surrounded by three protective membranes, and is enclosed within the vertebrae (back bones). The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
tissue (TIH-shoo)
A group or layer of cells that work together to perform a specific function.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)
(http://www.cancer.gov/dictionary)
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