Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.
From the case:
Pellegrini-Stieda lesion
{"study":{"id":32197,"case_slug":"pellegrini-stieda-lesion-7","modality":"X-ray","series":[{"id":575976,"content_type":"image/jpeg","frames":[{"id":575976,"width":502,"height":774,"current":true,"featured_at":"2014-10-22T13:00:17.000Z"}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"12b80a3cd6cdc152fecf64801d56f9_tiny.jpg","jumbo":"12b80a3cd6cdc152fecf64801d56f9_jumbo.jpg","small":"12b80a3cd6cdc152fecf64801d56f9_small.jpg","thumb":"12b80a3cd6cdc152fecf64801d56f9_thumb.jpg","medium":"12b80a3cd6cdc152fecf64801d56f9_medium.jpg","gallery":"12b80a3cd6cdc152fecf64801d56f9_gallery.jpg","big_gallery":"12b80a3cd6cdc152fecf64801d56f9_big_gallery.jpg","original":"12b80a3cd6cdc152fecf64801d56f9.jpg"}]},"perspective":"Frontal","specifics":null}],"caption":{"us":null,"gb":null},"findings":{"us":"","gb":""},"contributor_login":"radswiki","case_id":11752,"case_key_image_id":null,"case_featured_at":"22 Oct 2014"},"current_user":null,"access":{"can_edit":false,"can_download":true,"can_feature":false,"can_pin":true}}
Calcific linear focus is present medial to the distal femur in the region of proximal attachment of the medial collateral ligament.
From the case:
Pellegrini-Stieda lesion
{"study":{"id":12115,"case_slug":"pellegrini-stieda-lesion-7","modality":"MRI","series":[{"id":575977,"content_type":"image/jpeg","frames":[{"id":575977,"width":750,"height":702,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"f118a349a6e872d73d611b7bef4f3c_tiny.jpg","jumbo":"f118a349a6e872d73d611b7bef4f3c_jumbo.jpg","small":"f118a349a6e872d73d611b7bef4f3c_small.jpg","thumb":"f118a349a6e872d73d611b7bef4f3c_thumb.jpg","medium":"f118a349a6e872d73d611b7bef4f3c_medium.jpg","gallery":"f118a349a6e872d73d611b7bef4f3c_gallery.jpg","big_gallery":"f118a349a6e872d73d611b7bef4f3c_big_gallery.jpg","original":"f118a349a6e872d73d611b7bef4f3c.jpg"}]},"perspective":"Axial","specifics":"T1"},{"id":575979,"content_type":"image/jpeg","frames":[{"id":575979,"width":758,"height":762,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"17244344f80c5f4e94b1f05cfa25de_tiny.jpg","jumbo":"17244344f80c5f4e94b1f05cfa25de_jumbo.jpg","small":"17244344f80c5f4e94b1f05cfa25de_small.jpg","thumb":"17244344f80c5f4e94b1f05cfa25de_thumb.jpg","medium":"17244344f80c5f4e94b1f05cfa25de_medium.jpg","gallery":"17244344f80c5f4e94b1f05cfa25de_gallery.jpg","big_gallery":"17244344f80c5f4e94b1f05cfa25de_big_gallery.jpg","original":"17244344f80c5f4e94b1f05cfa25de.jpg"}]},"perspective":"Coronal","specifics":"T2"},{"id":575994,"content_type":"image/jpeg","frames":[{"id":575994,"width":771,"height":760,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"7fc1988b398a0909d8cf2e9ebf31ee_tiny.jpg","jumbo":"7fc1988b398a0909d8cf2e9ebf31ee_jumbo.jpg","small":"7fc1988b398a0909d8cf2e9ebf31ee_small.jpg","thumb":"7fc1988b398a0909d8cf2e9ebf31ee_thumb.jpg","medium":"7fc1988b398a0909d8cf2e9ebf31ee_medium.jpg","gallery":"7fc1988b398a0909d8cf2e9ebf31ee_gallery.jpg","big_gallery":"7fc1988b398a0909d8cf2e9ebf31ee_big_gallery.jpg","original":"7fc1988b398a0909d8cf2e9ebf31ee.jpg"}]},"perspective":"Coronal","specifics":"PD fat sat"}],"caption":{"us":null,"gb":null},"findings":{"us":"","gb":""},"contributor_login":"radswiki","case_id":11752,"case_key_image_id":null,"case_featured_at":"22 Oct 2014"},"current_user":null,"access":{"can_edit":false,"can_download":true,"can_feature":false,"can_pin":true}}
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.
This case was donated to Radiopaedia.org by Radswiki.net