Aspergillus in the lung: diverse and coincident forms

Area of Science:

• Pulmonology
• Mycology
• Infectious Diseases

Background:

• Pulmonary disease caused by Aspergillus traditionally presents as distinct entities: saprophytic aspergilloma, allergic bronchopulmonary aspergillosis (ABPA), and invasive aspergillosis (IPA).
• IPA can be further categorized into angioinvasive, acute airway invasive, or chronic airway invasive forms.
• The distinct categorization often obscures the potential for overlap and co-existence of multiple Aspergillus-related pathological processes within a single patient.

Purpose of the Study:

• To review the clinical and imaging features of the main categories of pulmonary Aspergillus-related disease.
• To emphasize the significant overlap that can exist between these distinct Aspergillus-related pulmonary conditions.
• To provide a comprehensive overview for clinicians managing complex Aspergillus infections.

Main Methods:

• Literature review of clinical and imaging findings in pulmonary Aspergillus diseases.
• Analysis of diagnostic criteria for aspergilloma, ABPA, and IPA.
• Synthesis of evidence regarding the co-existence of different Aspergillus-related pathologies.

Main Results:

• Traditional classification of pulmonary Aspergillus diseases can be misleading due to frequent overlap.
• Clinical and imaging findings may present features of more than one Aspergillus-related entity simultaneously.
• Recognition of overlapping pathologies is crucial for accurate diagnosis and effective management.

Conclusions:

• Pulmonary Aspergillus diseases are not always distinct entities and frequently overlap.
• Understanding the interplay between aspergilloma, ABPA, and IPA is essential for optimal patient care.
• Integrated diagnostic and therapeutic approaches are necessary for managing patients with co-existing Aspergillus-related pulmonary conditions.