Study on the Detection of Pleuropulmonary Manifestations in Rheumatoid Arthritis

This study is examining how often people with rheumatoid arthritis develop lung and chest-related complications — and what those complications look like — using routine clinical tests like blood tests, CT scans, and breathing function tests. **You may be eligible if...** - You are 18 or older - You have a confirmed diagnosis of rheumatoid arthritis (meeting current medical classification criteria) - You live in Austria - You have signed a consent form **You may NOT be eligible if...** - You are pregnant - You are under 18 - You have a medical reason that prevents you from having a blood draw, CT scan, or other routine tests (such as severe needle phobia or claustrophobia) Talk to your doctor to see if this trial is right for you.