DEVELOPMENT OF SCAR IN ELEVATED TYPE GASTRIC ULCER FOLLOWING TREATMENT OF ENDOSCOPIC LASER FOR EARLY GASTRIC CANCER: A CASE REPORT

Abstract

A case of early gastric cancer which was difficult to make differetial diagnosis between benign and malignant lesion after endoscopic irradiation was reported.
A 81-year-old male with early gastric cancer (IIc) at the prepylorus was treated by endoscopy due to severe cardiac failure. The ulcer after laser irradiation was treated with cimetidine, sofalcone and pirenzepine. Endoscopic finding showed two abnormal reddish polypoid elevations with converging folds 4 months after Nd: YAG irradiation. Mucosal appearence of the elevations was reddish and slightly roughsurfaced, but smooth-surfaced mucosa. Endoscopic polypectomy was carried out for the elevation to make accurate diagnosis. Histopathological finding was hyperplastic polyp and we concluded an elevated type, gastric ulcer scar induced by endoscopic treatment. It was suggested that this lesion developed from the interaciton between H₂ blocker and endoscopic laser treatment.