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gastrointestinal stromal tumor

(GAS-troh-in-TES-tih-nul STROH-mul TOO-mer)
A type of tumor that usually begins in cells in the wall of the gastrointestinal tract. Some gastrointestinal stromal tumors may grow slowly over time, while others can grow and spread very quickly. Also called GIST.
Drawing of the gastrointestinal tract showing the esophagus, stomach, colon, small intestine, and rectum.Enlarge this image in new window
Gastrointestinal stromal tumors (GISTs) may be found anywhere in or near the gastrointestinal tract.
Search NCI's Dictionary of Cancer Terms