Pneumonia eosinofilic in pediatrics, clinical cases

Area of Science:

• Pediatric Pulmonology
• Rare Diseases
• Critical Care Medicine

Background:

• Eosinophilic Pneumonia (EP) is a rare pediatric disorder.
• Characterized by eosinophil infiltration in lung interstitium.
• Can be primary/secondary, acute/chronic.

Observation:

• Two infants with respiratory failure initially diagnosed with viral pneumonia.
• Both had asthmatic mothers, fever, persistent chest X-ray infiltrates, and peripheral eosinophilia.
• One required prolonged oxygen, diagnosed via lung biopsy; the other needed mechanical ventilation, diagnosed by BAL eosinophilia.

Findings:

• Diagnosis of EP in infants requires high suspicion with persistent pneumonia.
• Bronchoalveolar lavage (BAL) eosinophilia (>20%) or lung biopsy confirms EP.
• Both cases showed excellent response to systemic corticosteroids.

Implications:

• EP should be considered in pediatric pneumonia cases unresponsive to standard treatment.
• Early diagnosis and corticosteroid therapy are crucial for favorable outcomes.
• Further research into pediatric EP is warranted.