Endoscopic Assessment of Colorectal Cancer with Superficial or Deep Submucosal Invasion Using Magnifying Colonoscopy.
- Author:
Shinji TANAKA
1
;
Nana HAYASHI
;
Shiro OKA
;
Kazuaki CHAYAMA
Author Information
- Publication Type:Review
- Keywords: Colorectal subumucosal carcinoma; Invasion depth; Pit pattern; Narrow band imaging; Magnifying colonoscopy
- MeSH: Colonoscopy; Colorectal Neoplasms; Imidazoles; Lymph Nodes; Narrow Band Imaging; Neoplasm Metastasis; Nitro Compounds
- From:Clinical Endoscopy 2013;46(2):138-146
- CountryRepublic of Korea
- Language:English
- Abstract: Among early colorectal carcinoma, endoscopic treatment is generally indicative for cases with intramucosal to submucosal (SM) superficial invasion, because cases with SM deep invasion should be treated surgically due to the risk of lymph node metastasis. It is important, therefore, to distinguish between superficial and deep SM invasion in early colorectal carcinoma prior to treatment. In this review we assessed the clinical usefulness and knack of pit pattern and narrow band imaging (NBI) diagnosis using magnifying observation. VN type pit pattern, type C3 in NBI Hiroshima classification and NBI type 3 in NBI international colorectal endoscopic (NICE) classification are useful predictors of SM deep invasion. In NBI magnifying observation evaluation of both the vascular pattern and surface pattern are important. We have to use pit pattern diagnosis and NBI magnifying diagnosis as the situation demands with the knowledge of both advantage and disadvantage in each diagnostic method.
