retinoblastoma
(REH-tih-noh-blas-TOH-muh)
Cancer that forms in the tissues of the retina (the light-sensitive layers of nerve tissue at the back of the eye). Retinoblastoma usually occurs in children younger than 5 years. It may be hereditary or nonhereditary (sporadic).
(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)
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)
hereditary (huh-REH-dih-tayr-ee)
Transmitted from parent to child by information contained in the genes.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
nerve (nerv)
A bundle of fibers that receives and sends messages between the body and the brain. The messages are sent by chemical and electrical changes in the cells that make up the nerves.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
retina (REH-tih-nuh)
The light-sensitive layers of nerve tissue at the back of the eye that receive images and sends them as electric signals through the optic nerve to the brain.
Source: The National Cancer Institute's Dictionary of Cancer Terms(http://www.cancer.gov/dictionary)
retinoblastoma (REH-tih-noh-blas-TOH-muh)
Cancer that forms in the tissues of the retina (the light-sensitive layers of nerve tissue at the back of the eye). Retinoblastoma usually occurs in children younger than 5 years. It may be hereditary or nonhereditary (sporadic).
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)
Inside MSKCC
|
©2013 Memorial Sloan-Kettering Cancer Center