McGill SK, Evangelou E, Ioannidis JP, Soetikno RM, Kaltenbach T. Rex DK, Kahi CJ, Michael O’Brien M, et al.: The American Society for Gastrointestinal Endoscopy PIVI on real-time endoscopic assessment of the histology of diminutive colorectal polyps. Validation of a simple classification system for endoscopic diagnosis of small colorectal polyps using narrow-band imaging. Hewett DG, Kaltenbach T, Sano Y, Tanaka S, Saunders BP, Ponchon T, Soetikno R, Rex DK. The presence of high grade dysplasia or superficial submucosal carcinoma may be suggested by an irregular vessel or surface pattern, and is often associated with atypical morphology (e.g., depressed area). ** Type 2 consists of Vienna classification types 3, 4 and superficial 5 (all adenomas with either low or high grade dysplasia, or with superficial submucosal carcinoma). * These structures (regular or irregular) may represent the pits and the epithelium of the crypt opening. 
This classification can be applied using colonoscopes both with or without optical (zoom) magnification.
Oval, tubular or branched white structures* surrounded by brown vessels Has area(s) of disrupted or missing vesselsĭark or white spots of uniform size, or homogeneus absence of pattern None, or isolated lacy vessels may be present coursing across the lesionīrown vessels surrounding white structures* Brown relative to background (verify color arises from vessels)īrown to dark brown relative to background sometimes patchy whiter areas
0 kommentar(er)
