Overview
Definition
Immunologic lung disease caused by inhaled organic antigens.
Epidemiology
Varies globally depending on genetics, environment, or exposure.
Etiology & Risk Factors
- Farmer's lung (moldy hay), Bird Fancier's lung (avian proteins).
Clinical Symptoms
- Fever
- chills
- cough
- dyspnea 4-8 hours after exposure.
Clinical Approach
Diagnosis
- Chest CT (ground-glass opacities).
Management
- Antigen avoidance
- Systemic corticosteroids.
Complications
- Pulmonary fibrosis.