Ght imaging,nevertheless,there have been no reports relating to visualization of LSTNG and depressed lesion in NBI observation. Aims Somatostatin-14 Strategies Aim: To investigate the visibility of LSTNG and depressed lesions by using NBI. Techniques: We intended consecutive sufferers with LSTNG and IIc lesions that were endoscopically or surgically resected in our hospital involving August and July . These lesions have been classified into 4 groups as followed: “Brownish area (BA)”,“Brown of only margins (Oring sign)”,“Same colour as typical mucosa (SC)” and “Whitish area (WA)” by look of NBI,and reveal every single ratio. Moreover,we compared pathological findings in individual groups of LSTNG and IIc lesions. Results: Result: A total of IIc lesions and LSTNG lesions have been analyzed. In IIc lesions,BA was lesions (Oring sign was lesions (SC was lesion and WA was lesion ( In LSTNG lesions,BA was lesions (Oring sign was lesions (SC was lesions and WA was no lesions. The pathological findings of IIc lesions as followed: in BA,lesion of higher grade dysplasia (HGD),and lesions of low grade dysplasia (LGD). In Oring sign,lesions of invasive cancer,and lesions of LGD. In SC and WA,LGD were lesion The pathological findings of LSTNG lesions as followed: in BA,lesions of invasive cancer,lesions of HGD,and lesions of LDG. In Oring sign,lesions of invasive cancer,lesions of HGD,and lesions of LGD. In SC,lesions of invasive cancer,lesions of HGD,and lesions of LGD. Conclusion: Conclusions: Due to the fact most of IIc lesions have been visualized as brown by NBI,there would be clinical benefit for the visibility. Around the other hands,roughly of LSTNG lesions had been recognized in exact same colour as surround typical mucosa,so the visibility was inferior to that of IIc lesions. Disclosure of Interest: None declaredP PITFALL OF PIT PATTERN DIAGNOSIS AND MAGNIFYING ENDOSCOPY WITH NARROW BAND IMAGING PREDICTION Of the DEPTH OF SUB MUCOSAL INVASION FOR COLORECTAL NEOPLAS H. Osumi,Y. Tamegai,T. Kishihara,A. Chino,M. Igarashi Division of Gastroenterology,Cancer Institute Hospital,Japanese Foundation for Cancer Investigation,Tokyo,Japan Contact E mail Address: hiroki.osumijfcr.or.jp Introduction: In Japanese Society for Cancer from the Colon and Rectum recommendations ,the intramucosal or superficial submucosal (depth of invasion m m:Ta) invasion is very important to identify acceptable for ESD. On the other hand,size and macroscopic variety both usually do not matter. So it is important for us to evaluate the depth of submucosal invasion mainly because there have already been reports of significantly elevated risk components for lymph node metastasis of early colorectal cancers in circumstances exactly where the lesions invaded the deep submucosa (depth of invasion ! ,m m:Tb). When we evaluate the depth of invasion for colorectal cancer,we commonly use pit pattern classification and magnifying narrow band imaging (NBI) adding white light observation and magnifying chromoendoscopy. Aims Procedures: The aim of this study is usually to evaluate diagnostic accuracy in estimating the depth of submucosal invasion of colorectal neoplasms making use of each pit pattern classification and NBI,and to PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/19389808 extract endoscopic features for misdiagnosis individuals. We enrolled the patients who performed colorectal ESD from January to December . Amongst them,sufferers ,guys. ,females,Median age D: . years) that we could confirm type V pit pattern had been enrolled for this study. Kind V pit patterns involve regions with irregular crypts (variety VI) and areas of apparent nonstructure (form VN). Typ.