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Updated: Aug 5, 2026
08:40
Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
[Premalignant and malignant changes in idiopathic inflammatory bowel disease]
S Knezević-Usaj1, M Panisić, D Tarabar
1Institut za patologiju, VMA-Beograd.
Acta Chirurgica Iugoslavica
|August 23, 2000
Summary
Patients with inflammatory bowel disease (IBD) face a higher risk of colorectal cancer (CRC). Regular surveillance colonoscopies with biopsies are crucial for detecting precancerous dysplasia and early-stage cancer, improving patient outcomes.
Area of Science:
- Gastroenterology and Oncology
- Pathology and Molecular Diagnostics
Context:
- Patients with long-standing inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), have an elevated risk of colorectal cancer (CRC).
- The progression to adenocarcinoma involves a premalignant phase of dysplasia, detectable through histological examination of mucosal biopsies.
- Current guidelines recommend surveillance colonoscopy and, in some cases, prophylactic colectomy to reduce CRC-related mortality.
Purpose:
- To outline the increased risk of colorectal cancer in patients with IBD.
- To emphasize the importance of dysplasia detection via colonoscopy and histology.
- To provide recommendations for surveillance intervals based on colitis extent.
Summary:
- Long-term IBD patients require vigilant monitoring for colorectal cancer due to increased risk.
- Surveillance colonoscopy with biopsies is recommended, with specific timing based on disease extent (e.g., 8-10 years for extensive colitis, 15-20 years for left-sided colitis).
- Biopsies should be taken frequently (every 10 cm) and from suspicious lesions. Advances in colon cancer genetics offer potential for improved early neoplasia detection using tumor markers.
Impact:
- Early detection of dysplasia and cancer through surveillance can significantly reduce colorectal cancer mortality in IBD patients.
- Standardized surveillance protocols aid clinicians in managing IBD-associated cancer risk.
- Emerging genetic markers may enhance the sensitivity and specificity of diagnostic tools for premalignant lesions.
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