Question 1584
{"accessible":false,"alternatives":[{"id":7891,"text":"bone destruction"},{"id":7892,"text":"enhancement like a pumice stone"},{"id":7893,"text":"midline location"},{"id":7894,"text":"T2 hyperintense signal"}],"archived":false,"correctAlternativeId":7893,"explanation":"\u003cp\u003eChordoma is a midline tumor because it arises from the notochordal remnant. Chondrosarcoma\u0026nbsp;arises at the petro-occipital synchondrosis and therefore is centered\u0026nbsp;off the midline. Both chordoma and chondrosarcoma cause bone destruction and are\u0026nbsp;T2 hyperintense. Chondrosarcoma enhances like a pumice stone, whereas chordoma often has a more honeycomb enhancement pattern.\u0026nbsp;\u003c/p\u003e","id":1584,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1638","nextQuestionPath":"/articles/chordoma/questions/459","relatedArticles":[{"id":6229,"title":"Chondrosarcoma of the skull base","link":"/articles/chondrosarcoma-of-the-skull-base?lang=us"}],"alsoUsedIn":[{"id":260,"kind":"Course","title":"Skull base: anatomy and pathology","link":"https://radiopaedia.org/courses/skull-base-anatomy-and-pathology"},{"id":588,"kind":"Course","title":"Radiology lectures for ENT Trainees - page 588","link":"https://radiopaedia.org/courses/radiology-lectures-for-ent-trainees/pages/588"},{"id":588,"kind":"Course","title":"Lectures by Jenny Hoang - page 588","link":"https://radiopaedia.org/courses/lectures-by-jenny-hoang/pages/588"},{"id":588,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 588","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/588"},{"id":588,"kind":"Course","title":"Head \u0026 Neck Lectures - page 588","link":"https://radiopaedia.org/courses/head-neck-lectures/pages/588"},{"id":588,"kind":"Course","title":"2020 Virtual Conference Private Use - page 588","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/588"}],"stem":"\u003cp\u003eWhich\u0026nbsp;feature would be most helpful to\u0026nbsp;distinguish\u0026nbsp;chordoma from chondrosarcoma at the clivus?\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/1584"}],"attemptsPercentages":[{"alternativeId":"7891","percentage":14},{"alternativeId":"7893","percentage":58},{"alternativeId":"7894","percentage":5},{"alternativeId":"7892","percentage":24}],"promptToLogin":false,"questionManager":false,"articleId":"chordoma"}