Presentation
Motor vehicle accident. Tenderness on the right foot.
Patient Data
Age: 35 years
Gender: Male
{"study":{"id":119943,"case_slug":"accessory-bones-of-the-foot-os-tibiale-externum-and-os-peroneum","modality":"X-ray","series":[{"id":57747764,"content_type":"image/png","frames":[{"id":57747764,"width":411,"height":647,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"PeAP_tiny.jpeg","jumbo":"PeAP_jumbo.jpeg","small":"PeAP_small.jpeg","thumb":"PeAP_thumb.jpeg","medium":"PeAP_medium.jpeg","gallery":"PeAP_gallery.jpeg","big_gallery":"PeAP_big_gallery.jpeg","original":"PeAP.png"}]},"perspective":"Frontal","specifics":null},{"id":57747765,"content_type":"image/png","frames":[{"id":57747765,"width":457,"height":639,"current":true}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"PeOBL_tiny.jpeg","jumbo":"PeOBL_jumbo.jpeg","small":"PeOBL_small.jpeg","thumb":"PeOBL_thumb.jpeg","medium":"PeOBL_medium.jpeg","gallery":"PeOBL_gallery.jpeg","big_gallery":"PeOBL_big_gallery.jpeg","original":"PeOBL.png"}]},"perspective":"Oblique","specifics":null}],"caption":{"us":null,"gb":null},"findings":{"us":"","gb":""},"contributor_login":"leonardo-miranda-lustosa","case_id":98820,"case_key_image_id":57747766,"case_featured_at":null},"current_user":null,"access":{"can_edit":false,"can_download":true,"can_feature":false,"can_pin":true}}
Normal foot radiographs.
Incidental os tibiale externum and os peroneum are noted (see annotated images below).
Accessory bones
{"study":{"id":119944,"case_slug":"accessory-bones-of-the-foot-os-tibiale-externum-and-os-peroneum","modality":"Annotated image","series":[{"id":57747766,"content_type":"image/png","frames":[{"id":57747766,"width":635,"height":1000,"current":true},{"id":57747767,"width":411,"height":647}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"001_tiny.jpeg","jumbo":"001_jumbo.jpeg","small":"001_small.jpeg","thumb":"001_thumb.jpeg","medium":"001_medium.jpeg","gallery":"001_gallery.jpeg","big_gallery":"001_big_gallery.jpeg","original":"001.png"},{"tiny":"002_tiny.jpeg","jumbo":"002_jumbo.jpeg","small":"002_small.jpeg","thumb":"002_thumb.jpeg","medium":"002_medium.jpeg","gallery":"002_gallery.jpeg","big_gallery":"002_big_gallery.jpeg","original":"002.png"}]},"perspective":"Frontal (annotated)","specifics":null},{"id":57747768,"content_type":"image/png","frames":[{"id":57747768,"width":715,"height":1000,"current":true},{"id":57747769,"width":457,"height":639}],"annotations":[],"encodings":{"original_dicom":null,"video":null,"thumbnailed_files":[{"tiny":"001_tiny.jpeg","jumbo":"001_jumbo.jpeg","small":"001_small.jpeg","thumb":"001_thumb.jpeg","medium":"001_medium.jpeg","gallery":"001_gallery.jpeg","big_gallery":"001_big_gallery.jpeg","original":"001.png"},{"tiny":"002_tiny.jpeg","jumbo":"002_jumbo.jpeg","small":"002_small.jpeg","thumb":"002_thumb.jpeg","medium":"002_medium.jpeg","gallery":"002_gallery.jpeg","big_gallery":"002_big_gallery.jpeg","original":"002.png"}]},"perspective":"Oblique (annotated)","specifics":null}],"caption":{"us":"Accessory bones","gb":"Accessory bones"},"findings":{"us":"","gb":""},"contributor_login":"leonardo-miranda-lustosa","case_id":98820,"case_key_image_id":57747766,"case_featured_at":null},"current_user":null,"access":{"can_edit":false,"can_download":true,"can_feature":false,"can_pin":true}}
Accessory ossicles are highlighted:
- os tibiale externum - blue
- os peroneum - green
Case Discussion
Accessory ossicles of the foot are common anatomical variants.
In the present case, both the os tibiale externum and os peroneum were incidentally noted.