摘要经内镜、手术和病理检查证实的44例早期胃癌，内镜判断正确者38例（86.5%）。其中直径小于20mm者，粘膜层（m）癌明显多于粘膜下层（Sm）癌；直径大于20mm者，Sm癌明显多于m癌。在9例隆起型早期胃癌中，隆起表面有糜烂、出血或结节者多为Sm癌，而表面光滑、无出血者多为m癌。在35例凹陷型早期胃癌中，皱襞先端部变细，凹陷区粘膜正常者多为m癌；而皱襞先端部杵状隆起、中断、凹陷区底面硬化、糜烂出血者为Sm癌。

abstractsForty-four cases with early gastric cancer (EGC) were confirmed by endoscopy, surgical operation and pathological examination, of which 38 cases were estimated correctly by endoscopy. The accurate rate was 86.5%.The size of tumor suggests the depth. Less than 2cm in diameter, the number of mucosal cancer is much more than one of submucosal cancer. More than 2cm in diameter frequently accompany submucosal cancer.In elevated lesions of EGC, erosion, bleeding and / or nodule on surface of elevation could be considered as the signs of submucosal invasion. On the other hand, most of the elevated lesion with normal surface was mucosal cancer.In depressed lesions of EGC, drumstick formation and / or fusion of interrupted folds at the depressed margins were signs of submucosal cancer. In addition, submucosal invasion was frequently observed with erosion, bleeding and stiff surface on the depressed mucosa. Almost normal mucosal surface on the depressed mucosa and the front of folds becoming small was signs of mucosal cancer.