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.
Pronunciation and more information at NCI.
Gastric cancer, also called stomach cancer, is a disease that starts in the stomach. The most common type is an adenocarcinoma, which arises from the glands in the stomach lining. Other kinds of gastric cancer are lymphoma, GIST (gastrointestinal stromal tumors), and carcinoid tumors.