Related Experiment Video
Updated: Jul 17, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Collagenous colitis with involvement of terminal ileum
F W Lewis1, G H Warren, J S Goff
1University of Colorado Health Sciences Center, Denver.
Abstract:
We present a case of collagenous colitis with evidence of terminal ileal involvement. The patient suffered from chronic watery diarrhea of three months' duration, and colonoscopy revealed a normal endoscopic appearance. Histologic examination of biopsies revealed a broad subepithelial band of collagen, with similar histologic findings in the terminal ileum. Additionally, the patient exhibited abnormalities of d-xylose and vitamin B12 absorption, although there were no clinical signs of malabsorption. Biopsy of the proximal small intestine was normal. The significance of these findings for the definition of the clinicopathologic entity of collagenous colitis and its pathogenesis are discussed.
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: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory Bowel Disease I: Introduction
Inflammatory Bowel Disease II: Ulcerative Colitis
Inflammatory Bowel Disease III: Crohn's Disease
Inflammatory Bowel Disease IV: Clinical Manifestations

