Glossary
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.
Definition from the National Cancer Institute’s NCI Dictionary of Cancer Terms.