April 2008

Submitted by Daria Motamedi, MD, Thomas J. Learch, MD and Jeffrey Dym, MD.

History: 28-year-old male with no significant past medical history presents with knee pain.

Shown below are AP and lateral views of the knee.

Where is the salient abnormality?

A. Femoral metaphysis
B. Patellofemoral joint
C. Lateral femoral condyle
D. Femoral epiphysis
E. No significant visible abnormality

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