Related Experiment Video
Updated: Jun 10, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
Non-polypoid colorectal neoplasms in ulcerative colitis
Yoshitaka Ueno1, Shinji Tanaka, Kazuaki Chayama
1Department of Endoscopy, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. yueno@hiroshima-u.ac.jp
Abstract:
The incidence of colorectal cancer associated with ulcerative colitis (UC) increases with time. It is imperative to identify dysplasia-associated lesions or masses (DALM) and non-polypoid colorectal neoplasms (NP-CRN) to reduce the morbidity and mortality from colorectal cancer associated with UC. Recent findings suggest most dysplastic lesions in UC can be considered as visible under careful endoscopic observation. To find NP-CRN in UC, the careful examination of well-prepared mucosa and noting subtle differences is necessary. Magnifying chromoendoscopy, therefore, can be useful to endoscopically diagnose these subtle findings. The authors believe that targeted biopsies during chromoendoscopy will increasingly be used and replace random biopsies in the future.
More Related Videos
Related Concept Videos
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease I: Introduction
Inflammatory Bowel Disease V: Surgical Management
Here are some common surgical interventions for IBD:
Drugs for Treatment of Ulcerative Colitis in IBD
Inflammatory Bowel Disease IV: Clinical Manifestations

