Ght imaging,nevertheless,there have already been no reports concerning visualization of LSTNG and depressed lesion in NBI observation. Aims Methods Aim: To investigate the visibility of LSTNG and depressed lesions by using NBI. Procedures: We intended consecutive patients with LSTNG and IIc lesions that were endoscopically or surgically resected in our hospital involving August and July . These lesions were classified into four groups as followed: “Brownish location (BA)”,“Brown of only margins (Oring sign)”,“Same colour as typical mucosa (SC)” and “Whitish region (WA)” by look of NBI,and reveal every ratio. In addition,we compared pathological findings in person groups of LSTNG and IIc lesions. Final results: Outcome: A total of IIc lesions and LSTNG lesions had 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: Considering the fact that the majority of IIc lesions have been visualized as brown by NBI,there would be clinical benefit for the visibility. Around the other hands,about of LSTNG lesions had been recognized in identical color 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 With the DEPTH OF SUB MUCOSAL Hesperidin site invasion FOR COLORECTAL NEOPLAS H. Osumi,Y. Tamegai,T. Kishihara,A. Chino,M. Igarashi Department of Gastroenterology,Cancer Institute Hospital,Japanese Foundation for Cancer Study,Tokyo,Japan Get in touch with E-mail Address: Introduction: In Japanese Society for Cancer of your Colon and Rectum suggestions ,the intramucosal or superficial submucosal (depth of invasion m m:Ta) invasion is essential to establish acceptable for ESD. However,size and macroscopic variety each don’t matter. So it is important for us to evaluate the depth of submucosal invasion simply because there have been reports of significantly elevated threat things for lymph node metastasis of early colorectal cancers in situations 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 to evaluate diagnostic accuracy in estimating the depth of submucosal invasion of colorectal neoplasms utilizing both pit pattern classification and NBI,and to PubMed ID: extract endoscopic features for misdiagnosis individuals. We enrolled the sufferers who performed colorectal ESD from January to December . Amongst them,individuals ,men. ,women,Median age D: . years) that we could confirm sort V pit pattern were enrolled for this study. Type V pit patterns contain places with irregular crypts (type VI) and locations of apparent nonstructure (type VN). Typ.