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Updated: Jul 18, 2026

Histological Quantification to Determine Lung Fungal Burden in Experimental Aspergillosis
Published on: March 9, 2018
[Semi-invasive necrotic aspergillosis in a child with cystic fibrosis]
A-S Bonnel1, K Quinque, P Le Roux
1CRCM, Département de Pédiatrie, Centre Hospitalier Général Gustave Flaubert, Le Havre, France.
Introduction:
Aspergillosis colonisation in cystic fibrosis (CF), usually due to Aspergillus fumigatus (AF), classically presents as allergic bronchopulmonary aspergillosis. However, aspergillus infection can produce a range of manifestations: from minor colonization to an invasive infection.
Case Report:
A 14-year-old CF patient, chronically colonized with Staphylococcus aureus and Pseudomonas aeruginosa, presented with acute right-sided chest pain, a moderate fever and no modification of the sputum. The chest X-ray showed a 5 cm round opacity. Laboratory parameters were WBC 24,500 G/l, CRP 27 mg/l, Total IgE 1527 UI/l, Specific Aspergillus fumigatus IgE 31 UI/l. Bronchoscopy revealed external compression of the middle lobe bronchus with mucopurulent secretions coming from apical segment of the lower lobe. Bronchoalveolar lavage revealed the presence of pseudomonas aeruginosa 103 CFA/ml, staph aureus 107 CFA/ml and one colony of AF. Chest CT scan showed a large necrotic mass with an air-fluid level located in the apical segment of the right lower lobe. Initial therapy with itraconazole and corticosteroid was replaced by voriconazole, caspofungin, metronidazole and linezolide. Treatment was well tolerated and after 8 weeks the chest X-ray appearances had returned to normal.
Conclusions:
The possible diagnoses and therapeutic options are discussed. Conventional antifungal treatment with amphotericin B is limited by nephrotoxicity. These newer antifungal agents appear to be effective and well-tolerated.
Insights
This case study highlights a rare invasive Aspergillus fumigatus infection in a cystic fibrosis patient, successfully treated with newer antifungal agents. The study emphasizes effective management of invasive aspergillosis in CF.
Area of Science:
- Pulmonology
- Infectious Diseases
- Medical Mycology
Background:
- Cystic Fibrosis (CF) patients are susceptible to Aspergillus fumigatus (AF) colonization, often presenting as allergic bronchopulmonary aspergillosis.
- AF infections in CF can range from simple colonization to invasive disease.
- This case details a severe manifestation in a young CF patient.
Observation:
- A 14-year-old CF patient with chronic Staphylococcus aureus and Pseudomonas aeruginosa colonization presented with chest pain and fever.
- Imaging revealed a 5 cm necrotic mass with an air-fluid level in the right lower lobe.
- Bronchoalveolar lavage confirmed AF alongside bacterial pathogens.
Findings:
- Elevated IgE levels and specific Aspergillus fumigatus IgE were noted.
- The patient was treated with voriconazole, caspofungin, metronidazole, and linezolid.
- Treatment led to normalization of chest X-ray findings within 8 weeks.
Implications:
- Newer antifungal agents show promise for treating invasive aspergillosis in CF patients.
- These agents appear effective and well-tolerated compared to traditional therapies like amphotericin B.
- This case underscores the importance of considering invasive fungal infections in CF exacerbations.
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