Question 1710
{"accessible":true,"alternatives":[{"id":8496,"text":"piece of pie sign"},{"id":8497,"text":"scallop sign"},{"id":8498,"text":"signet ring sign"},{"id":8499,"text":"spinnaker sign"},{"id":8500,"text":"Terry-Thomas sign"}],"archived":false,"correctAlternativeId":8496,"explanation":"\u003cp\u003eThe \u003cstrong\u003epiece of pie sign refers\u003c/strong\u003e to an abnormal triangular appearance of the lunate on a PA image of the wrist representing either lunate dislocation or perilunate dislocation.\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":1710,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/200/lunate-dislocation-10_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":54530},"imageAttributionCaseInfo":{"title":"Lunate dislocation","contributor_name":"Nauman Akram","contributor_param":"nauman-akram","case_rid":54530,"case_param":"lunate-dislocation-10"},"firstQuestionPath":"/questions/1710","nextQuestionPath":"/articles/spinnaker-sign-mediastinum/questions/814","relatedArticles":[{"id":2047,"title":"Signet ring sign (bronchiectasis)","link":"/articles/signet-ring-sign-bronchiectasis?lang=us"},{"id":18250,"title":"Piece of pie sign (wrist)","link":"/articles/piece-of-pie-sign-wrist?lang=us"},{"id":10013,"title":"Terry-Thomas sign","link":"/articles/terry-thomas-sign-4?lang=us"},{"id":76549,"title":"Scallop sign","link":"/articles/scallop-sign?lang=us"}],"alsoUsedIn":[{"id":747,"kind":"Course","title":"Emergency Radiology Course - Melbourne - page 747","link":"https://radiopaedia.org/courses/emergency-radiology-course-melbourne-2022/pages/747"},{"id":747,"kind":"Course","title":"X-ray Interpretation: Wrist Injuries - page 747","link":"https://radiopaedia.org/courses/x-ray-interpretation-wrist-injuries/pages/747"},{"id":747,"kind":"Course","title":"Emergency Radiology Course - Brisbane - page 747","link":"https://radiopaedia.org/courses/emergency-radiology-course-brisbane-2022/pages/747"},{"id":747,"kind":"Course","title":"X-ray Interpretation: Upper Limb Injuries - page 747","link":"https://radiopaedia.org/courses/x-ray-interpretation-upper-limb-injuries/pages/747"}],"stem":"\u003cp\u003eA patient presented with wrist pain following a fall, what radiographic sign is evident on this wrist radiograph?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1710"}],"attemptsPercentages":[{"alternativeId":"8499","percentage":6},{"alternativeId":"8498","percentage":10},{"alternativeId":"8497","percentage":10},{"alternativeId":"8496","percentage":63},{"alternativeId":"8500","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"spinnaker-sign-mediastinum"}