Presentation
Presents with medial knee pain and joint swelling. Patient denies recent history of knee trauma.
Patient Data
Gender: Male
From the case:
Pellegrini-Stieda lesion
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_pin":false},"extraPropsURL":"/studies/18065/annotated_viewer_json?lang=us"}
Anterior-posterior view of the knee shows linear ossification/calcification at the site of proximal medial collateral ligament (MCL) origin. Lateral view demonstrates joint effusion in the suprapatella recess.
Case Discussion
Pellegrini-Stieda lesion is thought to be the result of stripping of the femoral periosteum near the origin of the MCL, which leads to heterotopic ossification and dystrophic calcification.