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胃镜观察并钳取胃癌旁与溃疡旁粘膜组织各60例。胃癌旁组的中、重度萎缩、肠化及不典型增生的检出率较溃疡旁组高,尤其是重度的肠化及不典型增生两组间差异有显著意义(P<0.05)。肠化者经AB_(?)~(2·5)—PAS染色后,两组中79.5％病例AB与PAS均阴性,而AB—PAS均阴性者仅发生在溃疡旁组。
Gastroscopes were used to observe and clamp 60 cases of gastric cancer and para-mucosal mucosa. The detection rate of moderate-to-severe atrophy, intestinal metaplasia and atypical hyperplasia in the para-cancer group was higher than that in the para-ulcer group, especially in severe intestinal metaplasia and atypical hyperplasia (P<0.05). In patients with intestinal metaplasia stained by AB_(?)~(2·5)-PAS, AB and PAS were negative in 79.5% of the patients in both groups, while AB-PAS were negative only in the para-cancer group.