title: Flat and depressed lesions of the colorectum.
abstract: Although flat and depressed-type lesions are found by regular endoscopic view, magnification and pit pattern observation are vital parts of a precise diagnosis of the lesion. The depressed-type lesions have a prominent tendency to show malignant character, and the recognition and timely treatment of this lesion is inevitable in improving the morbidity and mortality from colorectal cancer. A magnifying colonoscope has the capability of a regular colonoscope with an additional feature: magnification. With chromoscopic techniques, the surface pattern of the mucosal pits can be observed. The pit-pattern classification correlates well with actual histologic findings and provides important additional information before endoscopic treatment of the lesion.
authors: Digestive Disease Center, Showa University Northern Yokohama Hospital, Japan. kudos@med.showa-u.ac.jp
authors: Shin-ei
authors: SE
authors: Kudo
authors: Hiroshi
authors: H
authors: Kashida
mesh_terms: D020685:Colonoscopes; D003113:Colonoscopy / Q000379:methods*; D015179:Colorectal Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000295:instrumentation; D005500:Follow-Up Studies; D006801:Humans; D009361:Neoplasm Invasiveness / Q000473:pathology; D009367:Neoplasm Staging / Q000295:instrumentation; D011446:Prospective Studies; D015203:Reproducibility of Results