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Case of the Week 334

What's the most likely diagnosis?

  • 28 year-old male with knee pain after fall

  1. Paget disease
  2. Multiple stress fractures
  3. Osteochondritis dissecans
  4. Growth arrest lines
  5. Joint effusion

Additional Images - Close-up of lateral tibia


Additional Images

Close-up of lateral tibia


4. Growth arrest lines

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Growth Arrest Lines

General Considerations

  • Dense metaphyseal, trabecular lines
  • Seen in children but persist into adulthood
  • First thought to represent periods of nutritional deprivation or infectious pathogens during the time of bone growth
    • May occur after prolonged immobilization or generalized illness


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28 year-old with knee pain after fall

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