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Review Question - QID 7570

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QID 7570 (Type "7570" in App Search)
An 11-year-old boy has a 6-month history of groin pain and a limp. A radiograph is shown in Figure 82a and a biopsy specimen is shown in Figure 82b. What is the etiology of the lesion?
  • A
  • B
  • A
  • B