1. A schematic representation of the vascular network of esophageal mucosa. a Submucosal drainage vein; b arborescentvessel; c intrapapillary capilary loop.Fig.2.Classication of intrapapillary capillary loop IPCL pattern. Type I, positively stained with iodine; IPCL no different from normal pattern. Type II, positively stained with iodine;IPCL have one or two out of four characteristic changes, and elongation and/or dilatation is commonly seen. often. Type III, negatively stained with iodine; IPCL have no changes or minimal changes. Type IV , negatively stained with iodine; IPCL have three out of four characteristic changes described in Type V . Type V; negatively stained with iodine; IPCL have all four characteristic changes indicating carcinoma-in-situ dilatation,torturous running, caliber changes and different shapes in each IPCL.Magnication endoscopy in the stomachYao and Oishi 1rst presented a basic histologic aspect of magnifying endoscopy in the stomach, and then clariedMAGNIFICATION ENDOSCOPY IN THE ESOPHAGUS AND STOMACH S41a well-demarcated area with loss of supercial capillary network and disappearance of normal pits structure.