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Inflammatory bowel disease
1Division of Gastroenterology, Georgetown University Medical Center, Washington, DC 20007, USA. chutkanr@gunet.georgetown.edu
Primary Care
|August 3, 2001
Summary
Idiopathic inflammatory bowel disease (IBD) includes Crohn's disease and ulcerative colitis. Some patients with irritable bowel syndrome present with indeterminate colitis, not fitting clearly into either diagnosis.
Area of Science:
- Gastroenterology
- Immunology
- Internal Medicine
Background:
- Idiopathic inflammatory bowel disease (IBD) encompasses Crohn's disease (CD) and ulcerative colitis (UC).
- CD is a transmural inflammatory condition affecting any GI tract segment, known by various names like regional enteritis.
- UC is a superficial colitis primarily affecting the colon, with 95% rectal involvement.
Purpose of the Study:
- To define the scope and characteristics of Crohn's disease and ulcerative colitis.
- To identify the subset of patients with features overlapping both CD and UC, termed indeterminate colitis.
Main Methods:
- Review of existing literature and clinical definitions of IBD subtypes.
- Analysis of epidemiological data and diagnostic criteria for CD and UC.
Main Results:
- Crohn's disease exhibits variable GI tract localization and nomenclature.
- Ulcerative colitis is characterized by colonic inflammation, frequently involving the rectum.
- 10-15% of IBD patients present with indeterminate colitis, lacking definitive CD or UC classification.
Conclusions:
- IBD comprises distinct entities, CD and UC, with specific clinical and pathological features.
- Indeterminate colitis represents a diagnostic challenge within the IBD spectrum.
- Accurate classification of IBD subtypes is crucial for appropriate patient management.