Question 1206
{"accessible":true,"alternatives":[{"id":6040,"text":"the invasive front is between 5 and 8 o'clock"},{"id":6041,"text":"the circumferential resection margin is threatened"},{"id":6042,"text":"it is a T4 cancer"},{"id":6043,"text":"it is a mucinous adenocarcinoma"},{"id":6044,"text":"there is extramural venous invasion"}],"archived":false,"correctAlternativeId":6040,"explanation":"\u003cp\u003eOn this single image, the tumor is invasive posteriorly but clear of the mesorectal fascia and other organs.\u0026nbsp;The T2 signal is not high as would be expected with mucinous adenocarcinoma. Extramural venous invasion is best assessed on sagittal and coronal images.\u003c/p\u003e","id":1206,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/818/60b1d7ac1e8a7ae18453c52e24e109_big_gallery_big_gallery.jpeg","imageAttribution":{"kind":"external","attribution":"Dr Vikas Shah"},"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1336","nextQuestionPath":"/articles/rectal-cancer/questions/1205","relatedArticles":[{"id":7136,"title":"Rectal cancer (staging)","link":"/articles/rectal-cancer-staging?lang=us"},{"id":37677,"title":"Circumferential resection margin","link":"/articles/circumferential-resection-margin?lang=us"},{"id":43061,"title":"Extramural vascular invasion (EMVI)","link":"/articles/extramural-vascular-invasion-emvi-1?lang=us"}],"alsoUsedIn":[{"id":457,"kind":"Course","title":"Radiology Review Course - Melbourne - page 457","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2019/pages/457"},{"id":457,"kind":"Course","title":"Radiology Review Course - Melbourne - page 457","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2020/pages/457"},{"id":457,"kind":"Course","title":"Radiology Review Course - page 457","link":"https://radiopaedia.org/courses/radiology-review-course-online/pages/457"},{"id":635,"kind":"Course","title":"Lectures by Vikas Shah - page 635","link":"https://radiopaedia.org/courses/lectures-by-vikas-shah/pages/635"},{"id":635,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 635","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/635"},{"id":635,"kind":"Course","title":"2020 Virtual Conference Private Use - page 635","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/635"}],"stem":"\u003cp\u003eWhich of the following is true regarding this axial MR image of rectal cancer:\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/1206"}],"attemptsPercentages":[{"alternativeId":"6043","percentage":4},{"alternativeId":"6040","percentage":68},{"alternativeId":"6042","percentage":8},{"alternativeId":"6041","percentage":12},{"alternativeId":"6044","percentage":9}],"promptToLogin":false,"questionManager":false,"articleId":"rectal-cancer"}