MUSCULOSKELETAL
Rheumatoid Arthritis (RA)
Etiology
Autoimmune, systemic
30–50 years
Clinical Features
Symmetrical small joints (hands, wrists, feet)
Symmetrical polyarthritis
Morning stiffness >1 hr, joint swelling, fatigue
Nodules, lung and heart involvement
XRAY Findings
Joint space narrowing, erosions
Treatment
DMARDs (e.g., methotrexate), biologics, corticosteroids