Objective:

To highlight the specific diagnostic challenges of identifying allergic bronchopulmonary aspergillosis (ABPA) in children presenting with difficult-to-treat asthma and recurrent pneumonia episodes.

Key Findings:

• The patient had borderline total IgE (678 IU/mL) and elevated Aspergillus-specific IgE (5.81 kUA/L).
• High-resolution CT showed bilateral infiltrates with scattered nodules, indicating significant pulmonary involvement.
• Diagnosis of ABPA was confirmed through integrated clinical, immunologic, radiologic, and microbiologic assessments, highlighting the need for a comprehensive diagnostic approach.

Interpretation:

ABPA should be considered in pediatric patients with difficult-to-treat asthma and recurrent pneumonia, as misdiagnosis can lead to unnecessary treatments, prolonged illness, and potential lung damage.

Limitations:

• The case study is based on a single patient, limiting generalizability to broader pediatric populations.
• There is a lack of epidemiological data on ABPA in pediatric populations, particularly in China, which hampers understanding of its prevalence and impact.

Conclusion:

This case underscores the importance of considering ABPA in children with asthma and recurrent respiratory infections, advocating for Aspergillus-specific IgE screening in such cases to facilitate early diagnosis and appropriate management.