Presentation
Knee pain
Patient Data
Age: Adult
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_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/12536/annotated_viewer_json?_c=1699858745\u0026lang=us"}
Radiographs of the left knee demonstrate calcification of the proximal portion of the medial collateral ligament.
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_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/38637/annotated_viewer_json?_c=1699858745\u0026lang=us"}
Zoomed image of the above x-ray.
Case Discussion
Pellegrini-Stieda lesion is an ossified lesion near the medial collateral ligament adjacent to the margin of the medial femoral condyle, often post-traumatic.