Colorectum: Mucosal neoplasias

Frieder Berr, Toshio Uraoka, Naohisa Yahagi

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)


To minimize the risk for interval cancer after colonoscopy, we aim to improve detection of small (<10 mm) and minute (<5 mm) flat-type neoplasias and often inconspicuous lateral spreading tumors in the colon. You need to distinguish neoplastic lesions differing in malignant potential and rate of progression in order to stratify surveillance intervals for follow-up. We focus on image-enhanced endoscopic distinction of (a) nonneoplastic lesions versus neoplasias and (b) intramucosal or superficial submucosa-invasive (sm1) neoplasias versus deep submucosa-invasive (sm2-3) early cancer. Endoscopic criteria allow defining (a) the lateral margins of flat neoplasias and (b) the likely grade of invasion-both required to decide indications for endoscopic en bloc resection or resective surgery.

Original languageEnglish
Title of host publicationEarly Neoplasias of the Gastrointestinal Tract
Subtitle of host publicationEndoscopic Diagnosis and Therapeutic Decisions
PublisherSpringer US
Number of pages47
ISBN (Electronic)9781461482925
ISBN (Print)1461482917, 9781461482918
Publication statusPublished - 2014 Jul 1

ASJC Scopus subject areas

  • General Medicine


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