A Case of Disappearance of Yamada's Type II Multiple Hyperplatic Polyps of Stomach by Eradication of Helicobacter Pylori

Abstract

A 69-year-old woman who had underwent endoscopic polypectomy of stomach before 4 years was admitted to my clinic for endoscopy. In endoscopic examination, five polyps classified Yamada's type II were located on greater curvature of antrum, anterior wall of angulus and greater curvature of upper body. Histological findings of biopsied specimens from these polyps revealed hyperplasia of the foveolar epithelium with moderate infiltration of inflammatory cells which was consistent with hyperplastic polyp. These polyps were unchanged during 2 years and Helicobacter pylori (H. pylori) was found by the CLO test and cultures of biopsied specimens.
She was treated with one week course of lansoprazole, amoxicillin and clarithromycin. About 14 months later, all polyps were disappeared and eradication of H. pylori was confirmed by biopsy, cultures and Urea breath test.
These result suggests that eradication of H. pylori may be expected as a useful treatment to hyperplastic polyp of stomach.