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本组病例男女之比为2.36:1,好发年龄为40~69岁;常发部位为幽门窦部;以溃疡型为多。光镜检查;管状腺癌占48.9%,其余依次为粘液腺癌,未分化癌、乳头状腺癌、印戒细胞癌、低分化腺癌、鳞状细胞癌、腺鳞癌。对30例各型胃癌新鲜活体组织进行电镜观察;胃癌细胞具有一般癌细胞超微结构特点。胃乳头状腺癌和管状腺癌管腔面有密集或较密集的微绒毛,胞浆内有丰富的线粒体和粗面内质网;粘液细胞型腺癌等癌细胞多呈单个游离状态,细胞间连接极少;肠型上皮癌细胞所含粘液颗粒电子
The ratio of males to females in this group was 2.36:1, with a predilection age of 40-69 years; the usual site was the pyloric sinus; the ulcer type was more. Light microscopy showed that tubular adenocarcinoma accounted for 48.9%, followed by mucinous adenocarcinoma, undifferentiated carcinoma, papillary adenocarcinoma, signet-ring cell carcinoma, poorly differentiated adenocarcinoma, squamous cell carcinoma, and adenosquamous carcinoma. Electron microscopy was performed on fresh living tissues of 30 cases of various types of gastric cancer; gastric cancer cells had the ultrastructure characteristics of general cancer cells. Papillary adenocarcinoma and tubular adenocarcinoma have dense or dense microvilli on the luminal surface. There are abundant mitochondria and rough endoplasmic reticulum in the cytoplasm. The mucinous adenocarcinoma and other cancer cells are mostly in a single free state. Minimal connectivity; enteric epithelial cancer cells contain mucus particles in the electrons