早期胃癌NBI放大内镜诊断应用（课件）.pptVIP

MS：absent surface pattern MV：sparse, isolated, heterogeneous microvessels; and avascular areas sm1癌 分化型 未分化型 颜色 发红 褐色 凹陷面性状 平滑-凹凸不平、不规则胃小区形状 无结构-凹凸不平、岛状黏膜残存 凹陷深度 浅 深 边缘性状 较为平坦 界限明显，呈断崖状 背景黏膜 萎缩、肠化 非萎缩 皱襞先端所见 逐渐变细或增粗 突然变细、消失 MV的结构表现分为三大类 A型，精细网络，fine network；--分化型 B型，螺旋型，corkscrew； ---未分化型 C型，未定型，unclassified） 表面微结构缺失表型（Absent microsurface pattern，AMSP）是未分化腺癌的一个指征 a C-WLI ?ndings.his lesion (arrow) was classi?ed as not red colored (pale) using C-WLI. b Magnifying endoscopy with narrow-band imaging (M-NBI) ?ndings (arrows, DL). Using the vessel plus surface (VS) classi?cation system, this lesion was diagnosed as cancer by the presence of an irregular MV pattern plus an irregular MS pattern. c The histopathological diagnosis of the resected specimen was EC. * A representative case of low-grade adenoma (LGA). a C-WLI ?ndings. This lesion (arrow) was classi?ed as not red colored (pale) using C-WLI. b M-NBI ?ndings (arrows, DL). Using the vessel plus surface (VS) classi?cation system, this lesion was diagnosed as noncancer by the presence of a regular MV pattern plus a regular MS pattern, with a DL. c The histopathological diagnosis of the resected specimen was LGA * Gastrointest Endosc. 2014 Jan;79(1):55-63. doi: 10.1016/j.gie.2013.07.008. Epub 2013 Aug 7. An efficient diagnostic strategy for small, depressed early gastric cancer with magnifying narrow-band imaging: a post-hoc analysis of a prospective randomized controlled trial. * Endoscopy.?2004 Dec;36(12):1080-4. Magnifying?endoscopy?combined?with?narrow?band?imaging?system?for?early?gastric?cancer:correlation?of?vascular?pattern?with?histopathology?(including?video). * Endoscopy.?2004 Dec;36(12):1080-4. Magnifying?endoscopy?combined?with?narrow?band?imaging?system?for?early?gastric?cancer:correlation?of?vascular?pattern?with?histopathology?(including?video). * 1.诊断存在与否 2.性质诊断：癌或非癌鉴别，组织型诊断 3.病变范围诊断 4.浸润深度诊断 MV(microvascular pattern)： 即MV（微血管）表型，包括规则MV表型，不规则MV表型，和MV表型缺失三种。 MS(microsurfare pattern)： 即MS（微结构）表型