Cancer that begins in glandular (secretory) cells. Glandular cells are found in tissue that lines certain internal organs and makes and releases substances in the body, such as mucus, digestive juices, or other fluids. Most cancers of the breast, pancreas, lung, prostate, and colon are adenocarcinomas.
Last updated: 2016-01-06
Source: The National Cancer Institute's Dictionary of Cancer Terms (http://www.cancer.gov/dictionary)