Arima S, Shimura H
Gastroenterol Jpn. 1978;13(4):244-54. doi: 10.1007/BF02774047.
Clinicopathological study was given to 100 early gastric cancer cases. The cases included 50 intramucosal lesions (m-group) and 62 submucosal lesions (sm-group), and the share is 17% of whole cases treated surgically. The sex ratio is about 2:1 (male : female). According to the classification by location, the occurrence rate of lesion on anterior wall is 18.8%. This fact suggests the impotance of roentgenscopy by compression technique and double contrast in a prone position focussed on anterior wall. In addition, endoscopy is essential in order to detect minute cancers. The rates of metastasis of early gastric cancers is 2.4% of m-group and 16.1% of sm-group. No metastasis occurs in protruded or elevated type as far as cancer cells remain within the mucosa. Once cancer cells infiltrate into the submucosa, metastasis is observed in 36%. In the present cases, 9 (9%) out of 100 cases of early gastric cancers are the multiple cases. In order to avoid oversight of cancer foci, the portion of stomach to be remained after surgery should be throughly examined prior to operation and again under direct vision after gastric incision.
对100例早期胃癌病例进行了临床病理研究。这些病例包括50例黏膜内病变（m组）和62例黏膜下病变（sm组），占手术治疗全部病例的17%。男女比例约为2:1（男:女）。根据病变部位分类，前壁病变的发生率为18.8%。这一事实表明，采用压迫技术和俯卧位双对比造影对前壁进行X线透视的重要性。此外，内镜检查对于发现微小癌至关重要。早期胃癌的转移率在m组为2.4%，在sm组为16.1%。只要癌细胞局限于黏膜内，隆起型或凸起型不会发生转移。一旦癌细胞浸润至黏膜下层，36%会发生转移。在本研究病例中，100例早期胃癌中有9例（9%）为多发癌。为避免遗漏癌灶，手术前应仔细检查拟保留的胃部分，胃切开后应在直视下再次检查。
