Vol. 3 No. 2 (2020): Open Journal of Gastroenterology and Hepatology
Research Articles

Polypoid Collagenous Colitis: A Microscopic Colitis with a Macroscopic Appearance

David Gay, MD1, Darcy Broughel-Baer, DO2, Rachel Hudacko, MD3
1Department of Pathology, Immunology, and Laboratory Medicine, Rutgers New Jersey Medical School, Medical Science Building C-579, 185 South Orange Avenue, Newark, New Jersey 07103 2Department of Pathology, Orange Regional Medical Center, 707 East Main Street, Middletown, New York 10940 3Department of Pathology and Laboratory Medicine, Rutgers Robert Wood Johnson Medical School, MEB 212, 125 Paterson Street, New Brunswick, New Jersey 08901
Keywords
  • Collagenous colitis (CC), microscopic colitis (MC), colon polyps, endoscopy
How to Cite
David Gay, MD1, Darcy Broughel-Baer, DO2, Rachel Hudacko, MD3. (2020). Polypoid Collagenous Colitis: A Microscopic Colitis with a Macroscopic Appearance. Open Journal of Gastroenterology and Hepatology, 3(2), 36. https://doi.org/10.28933/ojgh-2020-04-2805​

Abstract

Collagenous colitis is a type of microscopic colitis which was originally named based on specific histologic features and the lack of macroscopic abnormalities in the colon. However, there are reports in the literature that describe various macroscopic findings on colonoscopy in patients with histologically confirmed microscopic colitis. We report a case of collagenous colitis that was characterized by a diffusely polypoid colonic mucosa on gross examination of a right hemicolectomy specimen that was performed for a benign neoplasm in a 72 year old man. It is important for endoscopists to be aware of the various macroscopic abnormalities that may be present in this “microscopic” disease.

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