Distal clavicular erosion (differential)

Erosion or absence of the distal ends of the clavicles may be seen in a wide range of conditions.

Differential diagnosis

Bilateral erosions
  • weightlifter's shoulder: due to repetitive microtrauma; classically described in weightlifters, but can affect anyone performing repetitive overhead lifting and carrying 3,4
  • hyperparathyroidism
    • subchondral bone resorption; usually symmetric with osteopenia, abnormal trabecular pattern
    • the acromion is normal, but the sternoclavicular joint may be affected
  • rheumatoid arthritis
    • bilateral or unilateral changes with soft tissue swelling, subchondral osteoporosis and erosion of the outer third of the clavicle
    • acromial erosions may occur later in the disease process
  • scleroderma
  • cleidocranial dysostosis
  • pyknodysostosis (rare)
  • progeria (rare) 5
Unilateral erosion

See also

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Article information

rID: 1231
Section: Gamuts
Synonyms or Alternate Spellings:
  • Distal clavicle erosion (differential)
  • Erosion of distal clavicles (differential)
  • ACJ erosion (differential)
  • Distal clavicle reabsorption (differential)
  • Distal clavicle osteolysis (differential)
  • Distal clavicular osteolysis (differential)

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Cases and figures

  • Case 1: bilateral
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  • Case 2: rheumatoid arthritis
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  • Post traumatic os...
    Case 3: post-traumatic osteolysis
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  • Case 4: hyperparathyroidism
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  • Case 5
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  • Case 6: psoriatic arthropathy
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