Prognostic significance of clinicopathologic parameters in gastrointestinal stromal tumors: a study of 156 cases

The biological behavior of gastrointestinal stromal tumors (GISTs) are highly variable. To investigate the biological behavior of GIST, we collected 83 cases of gastric and 62 cases of small intestinal GIST from the Department of Pathology of the Chinese PLA General Hospital. The parameters include age, primary tumor location, tumor diameter, mitotic index, tumor necrosis, risk assessment, clinical stage and the c-kit exon 11 mutation. All these...