Internal medicine

Hypersensitivity Pneumonitis (HP) / Extrinsic Allergic Alveolitis (EAA) Hypersensitivity pneumonitis (HP) is an immune-mediated interstitial lung disease (ILD) caused by repeated inhalation of a sensitizing antigen in susceptible individuals, leading to inflammation of: Alveoli Terminal bronchioles Interstitium Unlike asthma, HP primarily affects the alveolar-interstitial compartment rather than the conducting airways. HP may progress from reversible […]