• Aug 4, 2025 hrct in interstitial lung disease instructive cas ity Pneumonitis (HP) Clinical Background: A 40-year-old bird breeder with episodic cough, chills, and dyspnea after exposure. HRCT Findings: Diffuse ground-glass opacities with centrilobular nodules Mosaic attenuation indicating air trapping Areas of air trapping visible on expiratory scans No By Grace Powlowski
