This was in view of the severe local pain caused by the hepatomegaly, and cachexia attributed to gastric ... bowel carcinoid tumor. Carcinoid tumors commonly originate in the gastrointestinal ...

The COX-1 staining was very similar in normal gastric, and small and large intestinal tissues. Cyclo-oxygenase-1 staining was occasionally observed in mucosal epithelial cells, stromal fibroblasts ...

Carcinoid tumors are thought to arise from neuroendocrine cells and originate mainly in the gastrointestinal tract. Cyclo-oxygenase-2 is reportedly expressed in neuroendocrine cells of normal ...

Four months later an exploratory laparotomy revealed an ulcerated gastric carcinoid ... whose tumor produced 5-hydroxytryptophan. Treatment with PCP appeared to relieve gastrointestinal symptoms ...