gastrointestinal stromal tumor

Definition of gastrointestinal stromal tumor

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.

Source: NCI Dictionary of Cancer Terms