Abstract
The patient was a 69 years old man. An esophagogastroduodenoscopy (EGD) performed previously had revealed an elevated, discolored lesion, 15 mm in diameter, located on the posterior wall of the middle gastric body. Since pathological analysis indicated a Group 3 lesion, this was followed up regularly after Helicobacter pylori (H.pylori) eradication therapy. An EGD performed six months after H.pylori eradication revealed the previously elevated lesion had become flat and indistinct ; 12 months later it adopted a depressed morphology. Since the pathological analysis of a biopsy 26 months later indicated a Group 5 lesion, the patient consulted us for an endoscopic submucosal dissection. Histopathological analysis of the removed lesion indicated an adenocarcinoma (tub1) , Type 0-IIc, pT1a (pM) .
Endoscopists need to remember morphological changes may occur in gastric tumors after H.pylori eradication therapy.