Hypersensitivity Pneumonitis: Causes, Symptoms, and Treatment
1. Introduction Hypersensitivity pneumonitis, historically referred to as extrinsic allergic alveolitis, is a complex immunologically mediated lung disease. It occurs when a susceptible individual inhales specific environmental organic antigens, triggering an exaggerated and destructive inflammatory response within the delicate functional units of the lungs. Unlike standard allergic asthma, which primarily constricts the larger airways, hypersensitivity … Read more