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Case of the Week 371

What's the most likely diagnosis?

  • 29 year-old male weight-lifter with shoulder pain

Right Shoulder-Neutral

1. Posterior shoulder dislocation
2. Fractured 1st rib
3. Rheumatoid arthritis
4. Clavicular osteolysis
5. Hyperparathyroidism

Additional Image - Right Shoulder-Axillary View


Additional Image


Right Shoulder-Axillary View



4. Clavicular osteolysis



More (Click Discussion Tab)

Distal Clavicular Osteolysis

General Considerations

  • Sequela of trauma from contact sports, falls and motor vehicle accidents
  • Incidence increased with weight lifting/training
    • Other sports include football, swimming
  • More often seen in males
  • Unilateral
  • Atraumatic causes are more common than traumatic
  • Continued stress on the joint may play a role in its development

    More ...


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    is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing  lectures, handouts, images, Cases of the Week, archives of cases, quizzes, flashcards of differential diagnoses and “most commons” lists, primarily in the areas of chest, GI, GU cardiac, bone and neuroradiology.