CT Findings May Signal Bladder Fungal Balls
Case report suggests imaging features could help physicians recognize obstructive fungal masses in high-risk patients
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By
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Andrea Surnit
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April 20, 2026
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Clinical Scorecard: CT Findings May Signal Bladder Fungal Balls
At a Glance
| Category | Detail |
|---|
| Condition | Bladder fungal balls causing urinary obstruction |
| Key Mechanisms | Formation of irregular, gas-containing bladder nodules with fungal hyphae leading to obstruction and emphysematous cystitis |
| Target Population | Patients with poorly controlled diabetes and urinary symptoms |
| Care Setting | Hospital or clinical setting with access to CT imaging and urologic intervention |
Key Highlights
- CT shows multiple irregular, mixed-attenuation bladder nodules with intraluminal gas and emphysematous cystitis.
- Bladder fungal balls can cause urinary obstruction and may enlarge despite antifungal therapy alone.
- Management typically requires combined antifungal treatment and procedural removal such as cystoscopic evacuation.
Guideline-Based Recommendations
Diagnosis
- Consider bladder fungal balls in diabetic patients presenting with urinary symptoms and CT findings of irregular gas-containing bladder nodules.
- Differentiate from enterovesical fistula by absence of fistulous tract, extraluminal inflammation, and fecaluria.
Management
- Initiate intravenous antifungal therapy (e.g., fluconazole).
- Combine antifungal therapy with procedural removal or irrigation of fungal masses to relieve obstruction.
Monitoring & Follow-up
- Repeat imaging to assess resolution of intramural gas and changes in bladder nodules.
- Monitor for progression of obstruction despite antifungal therapy.
Risks
- Potential for bladder outlet obstruction if fungal balls enlarge.
- Risk of misdiagnosis with conditions like enterovesical fistula or blood clots.
Patient & Prescribing Data
66-year-old patient with poorly controlled diabetes and hypertension presenting with urinary symptoms
Intravenous fluconazole for 10 days improved emphysematous cystitis but fungal nodules enlarged, indicating need for procedural intervention.
Clinical Best Practices
- Use noncontrast CT to identify irregular, gas-containing bladder nodules suggestive of fungal balls.
- Combine antifungal therapy with cystoscopic evacuation or irrigation to effectively manage obstruction.
- Improve glycemic control to support treatment response.
- Carefully differentiate fungal balls from other causes of bladder nodules to avoid mismanagement.
References
