Gastrointestinal Stromal Tumors: Clinical, Radiologic, and Pathologic Features

Abstract

Fig. 1.-50-year-old woman with small-bowel gastrointestinal stromal tumor (GIST). A, Photomicrograph of histopathologic slide shows typical GIST composed of fascicles of nondescript spindle cells. Appearance on H and E stain is similar to that of smooth muscle tumor. B, Photomicrograph of histopathologic slide shows that in appropriate clinicopathologic setting, c-kit positivity (brown staining) is diagnostic of gastrointestinal stromal tumor.