entangl3d

A gastrointestinal stromal tumor (GIST) is one of the most common mesenchymal tumors of the gastrointestinal tract

GISTs are tumors of connective tissue, i.e. sarcomas; unlike most gastrointestinal tumors, they are non-epithelial. 70% occur in the stomach, 20% in the small intestine and less than 10% in the esophagus.