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食管、胃交界部(以下简称交界部)指扁平上皮和腺上皮的交界处,两种上皮在此处相互交错形成锯齿形线,内窥镜下为白色食管粘膜与淡红色胃粘膜的交界线。日本学者把贲门部规定为锯齿形线上、下各2cm之间的部分,癌中心在此范围内者为贲门部癌,而癌中心位该线上、下各1 cm以内者为交界部癌。交界部微小癌最大直径定为2cm以内。此外,把胃体上部和穹窿部定为胃高位,在此范围的癌为胃高位癌。发生率:胃癌的部位越高,在男性中越多见。贲门部癌的男、女比例为3.1:1,而全胃癌
The esophagus and the stomach junction (hereinafter referred to as the junction) refers to the junction of the squamous epithelium and the glandular epithelium. The two types of epithelium interdigitate here to form a zig-zag line. The endoscope is the boundary between the white esophageal mucosa and the pale red gastric mucosa. . Japanese scholars have designated the Cardia Department as a part of the zig-zag line 2 cm apart. Cancer centers within this range are cardiac cancers, and cancer centers are within 1 cm of the line, and each is within the borderline. . The maximum diameter of the microcarcinoma at the junction is within 2cm. In addition, the upper part of the corpus and the sacrum are designated as high stomach, and the cancer in this range is high stomach cancer. Incidence: The higher the site of gastric cancer, the more common in men. The ratio of male to female cancer of the cardia is 3.1:1, and the total gastric cancer