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In rheumatoid arthritis, the joint lining (synovium) fills with immune cells, blood vessels, and other cells. This material grows until it erodes through the cartilage and surrounding bone as it expands. It also loosens ligaments and tendon attachments.
ByHealthwise Staff Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine Specialist Medical ReviewerNancy Ann Shadick, MD, MPH - Internal Medicine, Rheumatology
Current as ofSeptember 9, 2014
WebMD Medical Reference from Healthwise
September 09, 2014
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