[Mycological diagnosis of pulmonary Aspergillus infections with a focus on serological methods]

Area of Science:

• Medical Mycology
• Infectious Diseases
• Pulmonary Medicine

Background:

• Aspergillus fungi are common causes of severe lung infections, particularly in immunocompromised individuals.
• Pulmonary aspergillosis severity correlates with fungal invasion depth and host immunodeficiency.
• Accurate diagnosis is crucial for effective treatment of lung aspergillosis.

Purpose of the Study:

• To review and discuss the advantages of diverse mycological examination methods for diagnosing pulmonary aspergillosis.
• To highlight the utility of histological examination for assessing fungal invasion extent.
• To compare conventional and antigen-based detection methods for Aspergillus.

Main Methods:

• Histological examination of infected lung tissue.
• Conventional mycological techniques: microscopy and culture of airway samples.
• Detection of Aspergillus-specific antigen (galactomannan) and non-specific markers (beta-D-glucan) in serum or bronchoalveolar lavage fluid.
• Serological detection of anti-Aspergillus antibodies for chronic cases.

Main Results:

• Histology provides definitive assessment of fungal invasion in lung tissue.
• Microscopy and culture identify Aspergillus presence in airways.
• Galactomannan and beta-D-glucan assays offer valuable diagnostic information.
• Antibody detection is primarily relevant for chronic pulmonary aspergillosis.

Conclusions:

• Multiple mycological methods offer complementary diagnostic capabilities for pulmonary aspergillosis.
• The choice of diagnostic method depends on the clinical presentation and suspected form of aspergillosis.
• Integrated diagnostic approaches improve the accuracy and timeliness of aspergillosis diagnosis.