ILA | | Only individuals without known or suspected ILD# | Clinical-radiological entity | Incidental finding of CT abnormalities affecting more than 5% of any lung zone |
Early ILD | Pre-clinical ILD | Individuals at risk for ILD | Clinical-radiological-pathological entity | Any ILD in asymptomatic patients with preserved lung function |
Subclinical ILD | Individuals NOT at risk for ILD |
Mild ILD | | All individuals | Clinical-radiological-pathological entity | Any clinically significant ILD with minor symptoms and/or trivial PFT abnormalities |