Pellegrini-Stieda lesion

Case contributed by The Radswiki

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.


Calcific linear focus is present medial to the distal femur in the region of proximal attachment of the medial collateral ligament.


The medial collateral ligament is thickened and is the site of calcification seen on plain film. Features are characteristic of a Pellegrini-Stieda lesion

Case Discussion

Plain film and MRI demonstrate Pellegrini-Stieda lesion.

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