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Diverticulosis coli: update on a "Western" disease
Huihui Ye1, Mariela Losada, A Brian West
1Department of Pathology, New York University, New York, New York 10016, USA.
Advances in Anatomic Pathology
|February 26, 2005
Summary
Diverticular disease, common in older adults, involves colonic outpouchings. Pathologists must differentiate sigmoid colitis-associated diverticulosis from inflammatory bowel disease to prevent misdiagnosis.
Area of Science:
- Gastroenterology
- Colorectal Surgery
- Pathology
Background:
- Diverticular disease affects over 50% of individuals over 60 in Western countries, with increasing prevalence due to aging populations.
- Historically linked to low-fiber diets, prolonged colonic transit, and increased intraluminal pressure.
- Pulsion diverticula form in the left colon through the muscularis propria where blood vessels penetrate.
Purpose of the Study:
- To highlight the importance of distinguishing sigmoid colitis-associated diverticulosis (SCAD) from chronic inflammatory bowel diseases.
- To raise awareness among pathologists regarding potential misdiagnosis in sigmoid colon biopsies and resection specimens.
Main Methods:
- Review of existing literature on diverticular disease and its complications.
- Analysis of pathological changes in the sigmoid colon associated with diverticular disease.
- Comparison of SCAD features with those of ulcerative colitis and Crohn disease.
Main Results:
- Diverticular disease complications include hemorrhage, diverticulitis, abscess, fistula, and perforation.
- Polypoid prolapsing mucosal folds can develop in sigmoid colon affected by diverticular disease.
- Mucosal and bowel wall changes in SCAD can mimic inflammatory bowel disease.
Conclusions:
- Accurate differentiation of SCAD from inflammatory bowel disease is crucial for appropriate patient management.
- Pathologists must consider diverticular disease in sigmoid colon specimens to avoid overdiagnosing inflammatory bowel disease.