Abstract
Although linear mucosal tears have been reported, we found a relatively rare case of wavy mucosal tear in collagenous colitis. This may be related to the mutual weak adhesiveness between the epithelium and collagen band. This complication necessitates great care to be taken while performing colonoscopy in patients suspected of collagenous colitis.
Highlights
A 78‐year‐old woman was admitted with a three‐month history of watery, nonbloody diarrhea, and bodyweight loss
During removal of the colonoscope, we found a 5‐cm‐long wavy mucosal tear in the sigmoid colon (Figure 1)
Collagenous colitis was diagnosed based on hematoxylin‐eosin stain (Figure 2) and Azan stain (Figure 3) of the specimens which showed irregular thickening of the subepithelial collagen band with focal peeled surface epithelium (Figure 2; white arrows)
Summary
A 78‐year‐old woman was admitted with a three‐month history of watery, nonbloody diarrhea, and bodyweight loss. Physical examination and stool and blood test results were unremarkable.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
