Histopathologic observations have suggested that malignant transformation of gastric adenomas is infrequent, occurring in only 2.5% of conventional protruded and 5.0% of depressed adenomas.

• 组织病理学的观察已经提出胃腺瘤恶变是罕见的；在普通突出型中仅有2.；5%25；凹陷型中仅有5