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A 20-year-old male collegiate basketball player with painful catching of the left hip following a fall with lateral impaction of the joint. A. MRI revealed extensive signal changes in the medial aspect of the femoral head characterizing the subchondral injury associated with his fall. B. A full-thickness chondral flap lesion (*) associated with the injury is identified. C. The unstable portion has been excised. (Reprinted with permission.3)
