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- bilateral and symmetrical involvement
- proximal interphalangeal joint space narrowing (yellow arrows)
- metacarpal heads erosions (red arrows)
- metacarpophalangeal joint space narrowing (blue arrows)
- metacarpophalangeal joint osteopenia (green circles)
- pancarpal and radiocarpal involvement with erosions (yellow circles)
- carpometacarpal erosion (purple arrows)
- distal radioulnar joint loss of space (black arrows)
- distal interphalangeal joints spared
- soft tissue swelling