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Pulmonary aspergillosis
1Division of Allergology, Department of Internal Medicine, University Hospital Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands. j.f.c.tomee@int.azg.nl
Abstract:
Aspergillus species are ubiquitous in the environment and are inevitably inhaled into the airways. Inhalation of Aspergillus conidia or mycelium fragments may result in colonisation of the airways. In susceptible hosts colonisation may subsequently cause disease. Patients with pre-existent cavities may develop aspergillomas which may be quiescent or cause symptoms especially recurrent haemoptysis. Acute invasive disease is potentially lethal in patients who are vulnerable to infection due to underlying lung diseases or immunosuppression. In addition to its ability to colonise the human respiratory tract, Aspergillus has a significant potential to act as a powerful allergen resulting in Aspergillus asthma and allergic bronchopulmonary aspergillosis. The various presentations of pulmonary disease caused by Aspergillus are reviewed here, focusing primarily on clinical aspects rather than basic science.
Insights
Aspergillus, a common airborne mold, can cause serious lung diseases including aspergillomas and invasive infections in vulnerable individuals. It also acts as a potent allergen, leading to conditions like Aspergillus asthma.
Area of Science:
- Pulmonology
- Mycology
- Infectious Diseases
Background:
- Aspergillus species are widespread environmental molds.
- Inhalation of Aspergillus spores (conidia) or fragments is common.
- Airway colonization by Aspergillus can lead to various pulmonary diseases in susceptible individuals.
Purpose of the Study:
- To review the clinical presentations of pulmonary diseases caused by Aspergillus.
- To focus on the clinical aspects of Aspergillus-related lung conditions.
Main Methods:
- Literature review of clinical presentations of pulmonary aspergillosis.
- Focus on clinical manifestations and outcomes.
Main Results:
- Aspergillus can cause aspergillomas in patients with pre-existing lung cavities, potentially leading to hemoptysis.
- Acute invasive aspergillosis is a life-threatening condition in immunocompromised or debilitated patients.
- Aspergillus acts as a significant allergen, causing Aspergillus asthma and allergic bronchopulmonary aspergillosis.
Conclusions:
- Pulmonary diseases caused by Aspergillus have diverse clinical presentations.
- Recognition of these varied presentations is crucial for timely diagnosis and management.
- Aspergillus poses a significant threat through both infection and allergic sensitization in the respiratory tract.