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我院从1986年1月至1991年7月共做胃镜检查2546例,检出胃癌287例占11.3％。全部活检,病理阴性者54例占18％,其中29例经手术证实为胃癌,现将29例病理活检假阴性原因分析如下。一、早期胃癌取材较难在胃镜检查中,确定病变的部位及取材是活检阳性的关键。一般认为,定位及取材越准确,活检阳性率越高。由于取材不准,往往获得不到可靠的阳性组织。
From January 1986 to July 1991, 2546 cases of gastroscopy were performed in our hospital, and 287 cases of gastric cancer were detected in 11.3%. All biopsies and pathologically negative patients accounted for 18% in 54 cases, of which 29 cases were confirmed by surgery for gastric cancer, and 29 cases of false-negative biopsy are analyzed as follows. First, early gastric cancer is difficult to obtain in gastroscopy, to determine the location of the lesion and the material is the key to a positive biopsy. It is generally believed that the more accurate the positioning and drawing, the higher the positive rate of biopsy. Due to inaccurate materials, reliable positive tissues are often not obtained.