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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
ByHealthwise Staff Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine Specialist Medical ReviewerNancy Ann Shadick, MD, MPH - Internal Medicine, Rheumatology
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