RA associated ILD (RA-ILD) is the most common extra-articular manifestation in RA. Its prevalence varies considerably, ranging from 5% to 30%, and is often underestimated since patients only become symptomatic or display abnormalities on chest X-Ray at a late stage of disease, leading to subsequent delay in diagnosis. In this context, several groups advocate for an earlier and more precise detection, using high resolution chest computed tomography (HRCT), which is the most sensitive for pre-clinical RA-ILD diagnosis.
But why would we want to diagnose early a manifestation that we cannot treat?