Arthitis Xray

OA

- subchondral sclerosis, cysts, joint space narrowing, osteophytes

 

RA

- generalised osteopaenia

- marginal joint erosions due to synovial proliferation & pannus

- soft tissue swelling

- joint space narrowing

 

Psoriatic arthropathy

- distal arthritis with affected DIPJs

- periarticular erosions

- affects wrists severely

 

Gout

- erosions due to tophi

- punched out erosions, periarticular

- overhanging sclerotic margin

- no osteopaenia c.f. to RA