gastrointestinal stromal tumors treatment pdq treatment health professional information nci nci

Epidemiology Although they comprise fewer than 1% of all gastrointestinal (GI) tumors, GIST are the most common mesenchymal tumors of the GI tract. It has been estimated that there are 3,300 to 6,000 new GIST cases per year in the United States. A study based on Surveillance, Epidemiology and End Results (SEER)...