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Wavy mucosal tear in the sigmoid colon
Kentaro Tominaga1, Junji Yokoyama1, Kazunao Hayashi1
1Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences Niigata University Niigata Japan.
Clinical Case Reports
|September 20, 2019
Summary
A rare wavy mucosal tear was observed in collagenous colitis, unlike typical linear tears. This finding suggests careful colonoscopy is needed for patients with suspected collagenous colitis due to potential tissue fragility.
Area of Science:
- Gastroenterology
- Pathology
- Endoscopic Procedures
Background:
- Collagenous colitis is an inflammatory bowel disease characterized by a thickened subepithelial collagen band.
- Mucosal tears during colonoscopy are a known complication, typically linear.
Purpose of the Study:
- To report a rare case of wavy mucosal tear in collagenous colitis.
- To highlight potential implications for colonoscopy in patients with this condition.
Main Methods:
- Case report detailing endoscopic findings in a patient with collagenous colitis.
- Histopathological examination to confirm diagnosis and assess mucosal integrity.
Main Results:
- A rare wavy mucosal tear was identified during colonoscopy, distinct from previously reported linear tears.
- The wavy tear may be attributed to weak adhesion between the epithelium and the subepithelial collagen band.
Conclusions:
- Wavy mucosal tears represent a rare complication in collagenous colitis.
- Endoscopists should exercise caution during colonoscopy in patients with suspected collagenous colitis due to increased risk of mucosal injury.
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