Sigmoid colonic tuberculosis presenting as a colovesical fistula mimicking colorectal malignancy: a case report
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By
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Lingfeng Zhong
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Kun Xia
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Yanyun Fan
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June 8, 2026
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Clinical Scorecard: Isolated Sigmoid Tuberculosis Complicated by Colovesical Fistula: A Case Study Mimicking Colorectal Cancer
At a Glance
| Category | Detail |
|---|
| Condition | |
| Key Mechanisms | |
| Target Population | Adults, particularly older males with risk factors for tuberculosis |
| Care Setting | |
Key Highlights
- Integration of multiple diagnostic modalities is crucial for accurate diagnosis.
Guideline-Based Recommendations
Diagnosis
- Consider intestinal tuberculosis in differential diagnosis of sigmoid lesions
- Use imaging (e.g., CT scan, MRI), immunological testing, and molecular diagnostics for confirmation
Management
Monitoring & Follow-up
Risks
Patient & Prescribing Data
Empirical antimicrobial therapy was ineffective; tuberculosis treatment led to resolution within X weeks.
Clinical Best Practices
- Integrate multiple diagnostic modalities when initial histology is nondiagnostic
- Maintain a high index of suspicion for tuberculosis in atypical presentations, especially in older patients.
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