What causes nodules in the lungs with RA?
Rheumatoid arthritis can cause nodules to form in the lungs as part of RA-related lung disease. These pulmonary nodules develop due to scarring within the lungs caused by chronic inflammation from RA.
The same inflammatory process that affects your joints can also attack other Show Full Answer
What causes nodules in the lungs with RA?
Rheumatoid arthritis can cause nodules to form in the lungs as part of RA-related lung disease. These pulmonary nodules develop due to scarring within the lungs caused by chronic inflammation from RA.
The same inflammatory process that affects your joints can also attack other organs, including the lungs. This is why about 40 percent of people with RA experience symptoms outside their joints.
Key points about lung nodules in RA:
- They form from inflammatory tissue and scarring in the lungs
- They may look like lung cancer on X-rays and CT scans, but they don't lead to cancer
- A ruptured nodule can sometimes cause a collapsed lung and breathing difficulties
- They're more common in people with seropositive RA (testing positive for rheumatoid factor or anti-CCP antibodies)
Lung nodules are part of a broader condition called RA-related interstitial lung disease, which affects about 1 in 10 people with rheumatoid arthritis. If you're experiencing shortness of breath, fatigue, or a persistent dry cough, it's important to discuss these symptoms with your rheumatologist, as they may indicate lung involvement.
November 11, 2025
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