II. Finding: Decreased bone density

III. Finding: Bony erosions

IV. Finding: Cyst Formation

  1. Osteoarthritis (Subchondral cysts)
  2. Rheumatoid Arthritis (Synovial cysts)
  3. Calcium Pyrophosphate Deposition Disease (CPPD)

V. Finding: Joint space narrowing

  1. Osteoarthritis (non-uniform narrowing)
  2. Rheumatoid Arthritis (uniform)
  3. Calcium Pyrophosphate Deposition Disease (uniform)
  4. Psoriatic Arthritis
  5. Ankylosing Spondylitis

VI. Finding: Bone production

  1. Osteophytes
    1. Osteoarthritis
    2. Calcium Pyrophosphate Deposition Disease (CPPD)
    3. Diffuse Idiopathic Skeletal Hyperostosis (DISH)
  2. Subchondral Sclerosis
    1. Osteoarthritis
    2. Calcium Pyrophosphate Deposition Disease (CPPD)
  3. Tendon and Ligament Ossification
    1. Diffuse Idiopathic Skeletal Hyperostosis (DISH)
  4. Chondrocalcinosis
    1. Calcium Pyrophosphate Deposition Disease (CPPD)

VII. References

  1. Brower (1998) Arthritis Black and White, Saunders

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