From the surface to the single cell: Novel endoscopic approaches in inflammatory bowel disease

Figure 2 Digital dye-less chromoendocopy with i-scan in the lower gastrointestinal tract. i-scan uses a digital postprocessing algorithm that reconstructs the endoscopic image from the video processor in real time resulting in improved contrast of the capillary patterns and enhancement of the mucosal surface pattern morphology as exemplified on a adenomatous polyp in the colon. As a result of an accumulation of lipid-filled macrophages within the lamina propria, the mucosa adjacent to the polyp exhibits a chicken skin mucosa on digital chromoendoscopy.