| Theme |
Recent advance in diagnosis and management of colorectal tumors associated with inflammatory bowel disease |
| Title |
Usefulness of magnifying colonoscopy for ulcerative colitis associated neoplasia |
| Author |
Shiro Oka |
Department of Gastroenterology and Metabolism, Hiroshima University Hospital |
| Author |
Shinji Tanaka |
Department of Endoscopy, Hiroshima University Hospital |
| Author |
Kenta Matsumoto |
Department of Gastroenterology and Metabolism, Hiroshima University Hospital |
| Author |
Ryohei Hayashi |
Department of Endoscopy, Hiroshima University Hospital |
| Author |
Yoshitaka Ueno |
Department of Endoscopy, Hiroshima University Hospital |
| Author |
Kazuaki Chayama |
Department of Gastroenterology and Metabolism, Hiroshima University Hospital |
| [ Summary ] |
Ulcerative colitis (UC) associated neoplasia is an intestinal tract condition that can affect the life expectancy of UC patients. The current pit pattern classification system (Kudo-Tsuruta classification) may not be fully applicable in UC patients, because the pits characteristics of UC can become elongated or irregular, depending on the degree of inflammation. Our data showed that high residual density of pits and irregular pit margins were useful to differentiate between colitis-associated neoplastic and non-neoplastic lesions. An advantage of narrow band imaging (NBI) magnification is that visualization can be achieved without dye spraying, which potentially reduces the cost of examination and time consumed to diagnose UC associated neoplasias. The surface pattern, as determined by NBI magnifying colonoscopy, is a useful finding for differentiation between colitis-associated neoplastic and non-neoplastic lesions. Differentiating dysplastic lesions from non-dysplastic lesions can potentially help endoscopists perform smarter biopsies and increase diagnostic yield. |