Defining the Molecular and Radiologic Phenotype of Progressive RA Interstitial Lung Disease

A study to identify patients with Rheumatoid Arthritis - Associated Interstitial Lung Disease (RA-ILD) that are at the highest risk for progression. The goal of the investigators is to recruit a group of patients with RA-ILD and collect information to help us understand more about disease progression. The investigators will do this using a combination of clinical, radiologic, and biologic features.