OSTEOARTHRITIS
CHARACTERISTIC FEATURES
      • Joint space narrowing
      • Marginal osteophytes
      • Subchondral cysts
      • Subchondral sclerosis
      • Seagull erosions in DIPJ’s
CHARACTERISTIC DISTRIBUTION
      • Asymmetrical distribution
      • Lower more than upper limb
      • Hands particularly DIP and PIP joints
      • Base of thumb and STT
      • Superolateral hip
      • Anteromedial knee
      • Great toe MTPJ