Pellegrini-Stieda lesion

Case contributed by J. Ray Ballinger
Diagnosis certain

Presentation

Knee injury 2 years ago.

Patient Data

Age: 20 years
Gender: Male
x-ray

Linear ossification along the margin of the medial femoral condyle

Case Discussion

The Pellegrini-Stieda lesion is a form of myositis ossificans or soft tissue ossification that may occur a few weeks following an avulsion of the origin of the medial collateral ligament. It is usually seen in younger patients and may resolve with time.

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