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胃粘膜异型增生指胃粘膜上皮和腺体的一类偏离正常分化,形态和机能上呈现异型性表现的增生性病变。由于是胃癌的重要癌前病变而受到重视。然而迄今为止,异型增生的诊断和分级主要通过组织结构和细胞形态的异型性而作出的判断,尚缺少客观的定量或定性标准。
Gastric mucosal dysplasia refers to a type of hyperplasia of the gastric epithelium and glands that deviates from normal differentiation and shows a heterogeneous appearance in function and morphology. Because it is an important precancerous lesion of gastric cancer, it is valued. However, so far, the diagnosis and classification of dysplasia mainly through the histological structure and the heteromorphism of cell morphology have been lack of objective quantitative or qualitative criteria.