🧑⚕️ History
- 28-year-old male
- Productive cough with sputum
- Recurrent hemoptysis
- Previously treated pulmonary tuberculosis
- No fever, night sweats, or significant weight loss
🩺 Examination
- Mild pallor
- No clubbing
- No lymphadenopathy
- Reduced breath sounds in right upper zone
- Coarse crackles over right upper lung field
- Stable vital signs
🔬 Investigations
- CBC: Mild normocytic anemia
- AFB smear ×3: Negative
- Chest X-ray: Fibrotic cavity in right upper lobe
- HRCT: Thick-walled cavity containing soft tissue mass
- Aspergillus IgG precipitins awaited
- Spirometry: Mild restrictive defect
❓ MCQ Question
What is the most likely diagnosis?
A. Reactivation Pulmonary TuberculosisB. Pulmonary Aspergilloma
C. Bronchiectasis with Secondary Infection
D. Lung Carcinoma in a TB Scar
📋 Brief Case Summary
A young man with previously treated pulmonary tuberculosis presents with recurrent hemoptysis. Imaging shows a chronic upper lobe cavity containing a soft tissue mass with surrounding fibrosis and negative sputum AFB smears.
✅ Clickable Answer
Show Answer
✔️ B. Pulmonary Aspergilloma
📖 Answer Explanation
Pulmonary aspergilloma (fungus ball) commonly develops within a pre-existing lung cavity, most often following healed pulmonary tuberculosis. Recurrent hemoptysis is the classic presentation. HRCT demonstrating a mobile intracavitary soft tissue mass inside a fibrotic cavity strongly supports the diagnosis.
❌ Why Not Others?
- Reactivation TB: Usually associated with constitutional symptoms and positive microbiology.
- Bronchiectasis: Produces chronic sputum and hemoptysis but CT typically shows bronchial dilatation.
- TB Scar Carcinoma: Can occur but usually presents as an irregular mass rather than a fungus ball inside a cavity.
🩺 5 Brief Case Scenarios
- Old TB cavity + recurrent hemoptysis → Aspergilloma.
- Neutropenic patient + lung nodules → Invasive aspergillosis.
- Asthma + eosinophilia + high IgE → ABPA.
- Bronchiectasis + daily purulent sputum → Bronchiectasis.
- Smoker + cavitary upper lobe mass → Lung carcinoma.
🧠 Pathophysiology Simplified
A healed TB cavity provides a space where Aspergillus spores colonize. Fungal hyphae, mucus, inflammatory cells, and debris form a fungus ball (aspergilloma). Mechanical irritation and vascular erosion lead to recurrent hemoptysis.
🔍 Physical Examination Pearls
- Hemoptysis severity should be assessed first.
- Localized crackles may indicate chronic cavity disease.
- Look for anemia due to repeated blood loss.
- Absence of fever favors colonization rather than active infection.
- Assess respiratory reserve before surgery.
🎯 Investigations Choosing Wisely
- HRCT chest is the imaging test of choice.
- Aspergillus IgG supports chronic pulmonary aspergillosis.
- Sputum fungal culture may be helpful.
- Bronchoscopy if diagnosis remains uncertain.
- Exclude active TB with microbiological testing.
💊 Management
- Observation if asymptomatic.
- Oral antifungals for chronic pulmonary aspergillosis.
- Bronchial artery embolization for significant hemoptysis.
- Surgical resection in selected cases.
- Treat underlying lung disease.
📑 Differential Diagnosis
- Reactivation tuberculosis
- Bronchiectasis
- Lung carcinoma
- Lung abscess
- Pulmonary vasculitis
- Chronic pulmonary aspergillosis
⚠️ Clinical Pitfalls
- Assuming all hemoptysis in prior TB patients is recurrent TB.
- Missing fungal colonization on CT.
- Ignoring risk of massive hemoptysis.
- Failure to obtain Aspergillus serology.
- Overlooking coexisting malignancy.
💡 Clinical Pearls
- Previous TB cavity is the commonest risk factor.
- Hemoptysis is the hallmark symptom.
- Air-crescent sign is classic imaging finding.
- AFB smears are often negative.
- Massive hemoptysis may be life-threatening.
📅 Monitoring & Follow-Up
- Monitor frequency of hemoptysis.
- Periodic chest imaging.
- Assess lung function.
- Monitor antifungal toxicity.
- Evaluate for progression to chronic pulmonary aspergillosis.
❓ Frequently Asked Questions
1. What is an aspergilloma?
Fungal ball within a pre-existing cavity.
2. Most common predisposing disease?
Healed pulmonary tuberculosis.
3. Most common symptom?
Hemoptysis.
4. Which fungus causes it?
Aspergillus fumigatus.
5. Is it invasive?
Usually no, it is colonization.
6. Best imaging test?
HRCT chest.
7. What is the air-crescent sign?
Air surrounding a fungus ball inside a cavity.
8. Is sputum culture always positive?
No.
9. Useful serologic test?
Aspergillus IgG.
10. Main complication?
Massive hemoptysis.
11. Role of bronchoscopy?
Localization of bleeding and diagnosis.
12. Treatment for severe bleeding?
Bronchial artery embolization.
13. When is surgery indicated?
Localized disease with adequate lung reserve.
14. Can it recur after treatment?
Yes.
15. Prognosis?
Generally good if hemoptysis is controlled.
📚 Key Guidelines & References
- ERS Guidelines on Chronic Pulmonary Aspergillosis
- ESCMID Aspergillosis Guidelines
- IDSA Clinical Practice Guideline for Aspergillosis
- British Thoracic Society Hemoptysis Guidance
- Harrison's Principles of Internal Medicine
- Davidson's Principles and Practice of Medicine
🔎 Keywords
Pulmonary Aspergilloma, Fungus Ball Lung, TB Cavity Aspergilloma, Recurrent Hemoptysis, Aspergillus IgG, Air Crescent Sign, Chronic Pulmonary Aspergillosis, Hemoptysis After TB, Upper Lobe Cavity, Internal Medicine Quiz
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