Rheumatoid arthritis (RA) is an autoimmune condition that happens when your body’s immune system attacks the joint lining known as the synovium. The condition can cause firm lumps called nodules ...

Pulmonary rheumatoid nodules can resemble cancer or infection, making biopsy and careful imaging critical for accurate ...

RA primarily affects the joints, but it can also cause symptoms in other areas of the body, such as the skin. Learn how RA ...

The distal interphalangeal (DIP) joint connects the bones at the tips of the fingers. People with arthritis may experience pain, stiffness, and swelling in this joint. However, home remedies and ...

Symptoms of rheumatoid arthritis, such as joint swelling, joint pain, and joint stiffness, are described and detailed. Learn both the common and the uncommon symptoms of RA.

Lung-related conditions and symptoms associated with rheumatoid arthritis (RA) include interstitial lung disease, lung nodules, and small airway obstruction. Rheumatoid arthritis (RA) is an ...

If you’re seronegative for rheumatoid arthritis (RA), you may or may not have RA. It can make it harder to get an RA diagnosis. Being seronegative for RA means that a blood test doesn’t find ...