Gastric Cancer Concomitant with Inflammatory Fibroid Polyp Treated with Endoscopic Mucosal Resection Using an Insulation-tip Diathermic Knife

The endoscopic examination of a 66-year-old male patient revealed a protruding lesion close to a reddish lie area in the antrum of the stomach. The protruding lesion and reddish area were resected completely with endoscopic mucosal resection using an insulation-tip diathermic knife (IT-EMR). Histological examination of the protruding lesion revealed proliferation of fibroblasts and infiltration of inflammatory cells, and it was diagnosed as an inflammatory fibroid polyp (IFP). Adenocarcinoma in the lie area was present adjacent to the IFP. This maybe the first report of gastric cancer concomitant with gastric IFP treated by endoscopic mucosal resection. (Internal Medicine 42: 259-262, 2003)