: Symmetrical loss of cartilage, most frequently in the MCP (knuckle), PIP (middle finger), and carpal (wrist) joints.
: Late-stage structural changes like ulnar deviation (fingers drifting toward the pinky side), boutonnière deformity , and swan-neck deformity . Magnetic Resonance Imaging (MRI) The Rheumatoid Hand: Diagnostic Imaging
: Early thinning of the bone near affected joints. : Symmetrical loss of cartilage, most frequently in