胃镜下可疑恶性溃疡MG7-Ag表达与随访二次活检病理结果的对照研究

目的探讨MG7-Ag表达对良性、恶性溃疡的鉴别及可疑恶变溃疡的临床随访、二次活检的辅助指导价值。方法对58例经首次胃镜检查可疑恶性溃疡、活检、病理未能确诊患者进行ABC免疫组化染色后，密切临床随访1-72周（平均7周），所有患者均再次胃镜复查，组织活检。结果MG7-Ag阳性表达30例中有19例（63．3％）二次活检病理检查确诊为胃癌，阴性组28例中有5例（17．9％）确诊为胃癌，两组胃癌检出率差异有统计学意义（P〈0．01）。结论MG7-Ag阳性表达与胃癌关系密切，对这部分患者进行密切随访，有助于胃癌的早期发现。

Expression of MG7-Ag and follow-up mucosal pathological changes in patients with Suspected malignant gastric ulcer

Objective To evaluate the diagnostic value of expression of MG7-Ag diflferentiation and guidance of follow-up mucosal biopsy in the patients with suspected malignanct gastric ulcer.Methods The expression of MG7-Ag in 58 patients who were suspected as having malignant gastric ulcer under routine endoscopy was studied by immuno-histochemical staining.The follow-up endoscopy was pefformed 1 to 72 weeks(mean 7 weeks)later and biopsy was taken.Results There were 19 cases of gastric carcinoma in 30 patients with positive MG7-Ag expression(63.3%)and only 5 in 28 patients with negative MG7-Ag expression(P＜0.01).Conclusion The positive expression of MG7-Ag is correlated with gastrie carcinoma in patients with suspected malignant gastric ulcer.