Stromal tumour of the stomach.

originate in the mesenchymal elements of the gastric wall and express the CD-117 protein. They are submucosal and may be classified according to their morphologic features: endogastric (the most frequent type, in which the bulk of the tumour projects into the gastric lumen), exogastric (in which the tumour projects into the peritoneal cavity), combined endoand exogastric, and intramural. The peak incidence is in the sixth decade. Although mostly benign, these tumours exhibit a spectrum of clinical behaviour that may be difficult to predict even on the basis of histologic examination. I describe here a case of an endogastric stromal tumour associated with localized serosal hyperemia. Case report