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目的:探讨胃液中肿瘤标志物对诊断胃癌的临床价值.方法:通过胃镜抽取30例胃癌和38例胃溃疡患者的空腹胃液.用放射免疫法检测胃液中 CEA、 CA50、 FEP的含量.结果:胃癌与胃溃疡患者胃液CEA测定值分别为 ± S49.13±24.9G/L及15.9±13.84G/L(P＜0.01),CA50测定值分别为 ± S 56.59±31.3KU/L及40.24±16. 5KU/L(P＜0.05), FEP测定值分别为 47. 71± 385G/L及 38.82 ± 29.03G/L(P＞0.05).胃癌组胃液 CEA、 CA50的灵敏度分别是 53.5％及 46.7％联合检测 CEA与 CA50的灵敏度为 80％.结论:检测胃液肿瘤标志物对鉴别诊断良恶性胃病有一定的临床价值.“,”Objective: To study the diagnostic value of tumor makers in gastric juice for gastric cancer Methode: The gastric juice was taken from 30 patients with gastric cancer and 38 with gastric ulcer with the help of the endoscope. CEA. CA50 and Fep level in gastric juice was measured by radioimmunoassay method.Results: The value of CEA was (49. 13 ± 24.9)μg/L in cancer of cancer and (15.9 ± 13.8)μg/L in caese of ulcer (P