RHEUMATOID ARTHRITIS Showing degenerative and erosive changes dominantly at the MCP joints , intercarpal joints, ulnar carpal and radiocarpal joints and to lesser extent the PIP joints. There is ulnar deviation more prominent on the right hand Ashley Davidoff MDSWAN NECK DEFORMITY 3D reconstruction typifying a swan neck deformity of the 3rd digit characterized by hyperextension of the proximal interphalangeal (PIP) joint and compensatory flexion of the distal interphalangeal (DIP) joint This deformity is also seen in scleroderma psoriatic arthritis and systemic lupus erythematosus arthropathy. Ashley Davidoff MD
