Calcium Pyrophosphate Arthritis (Calcium Pyrophosphate Dihydrate Crystal Deposition Disease, Pyrophosphate Arthropathy, or Pseudogout)

Calcium Pyrophosphate Arthritis (Calcium Pyrophosphate Dihydrate Crystal Deposition Disease, Pyrophosphate Arthropathy, or Pseudogout)

Calcium pyrophosphate dihydrate crystal deposition is visible as poorly defined and variably dense radiopacities (red arrows) inside the elbow joint.

BIOPHOTO ASSOCIATES/SCIENCE PHOTO LIBRARY