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本文分析胃大部切除标本23例电镜及免疫组织化学研究结果。作者等发现:①G细胞位于胃窦粘膜中带,光镜下呈连续带状,炎症、肠上皮化生显著时呈斑块状;在胃窦、体移行部G细胞仅见于幽门腺或胃体假幽门腺化生处。电镜下G细胞位于幽门腺上皮细胞间,纵切面呈三角形,底宽,顶端胞浆呈锥状突入管腔,表面有微绒毛;核居中,圆或卵圆,核内以常染色质为主,可见核仁,核上可见高尔基体,核周可见粗面内质网及微丝,线粒体散见。②
This article analyzes the results of electron microscopy and immunohistochemistry in 23 patients with subtotal gastrectomy specimens. The authors found that: 1G cells are located in the middle antrum of the gastric antrum, with a continuous band under light microscopy. The inflammation and intestinal metaplasia show plaques when metaplasia is significant. G cells in the antrum and metastatic organs are only found in the pyloric gland or the stomach body. Pseudopylorus glands in place. Under the electron microscope, G cells are located between the pyloric gland epithelial cells, the longitudinal section is triangular, the bottom is broad, the apical cytoplasm tapers into the lumen, the surface has microvilli; the nucleus is centered, round or oval, and the nucleus is mainly chromatin. Visible nucleoli, Golgi visible on the nucleus, rough endoplasmic reticulum and microfilaments seen around the nucleus, mitochondria scattered. 2