Question 1456
{"accessible":true,"alternatives":[{"id":7270,"text":"A"},{"id":7271,"text":"B"},{"id":7272,"text":"C"},{"id":7273,"text":"D"},{"id":7274,"text":"E"}],"archived":false,"correctAlternativeId":7273,"explanation":"\u003cp\u003eThe cavernous carotid artery is located below the oculomotor nerve (A) and above the ophthalmic division of the trigeminal nerve (B) both of which can usually be seen on coronal imaging. Note it's close proximity to the lateral border of the pituitary gland. An ectatic or medially displaced artery is therefore at risk during pituitary surgery.\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":1456,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/75/MCQ_image_template_Keynote_wide.002_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":59691},"imageAttributionCaseInfo":{"title":"Normal pituitary MRI","contributor_name":"Frank Gaillard","contributor_param":"frank","case_rid":59691,"case_param":"normal-pituitary-mri-1"},"firstQuestionPath":"/questions/2398","nextQuestionPath":"/articles/cavernous-sinus/questions/1455","relatedArticles":[{"id":4524,"title":"Internal carotid artery","link":"/articles/internal-carotid-artery-1?lang=us"}],"alsoUsedIn":[{"id":87,"kind":"Course","title":"[TRIAL] Pituitary Region Learning Pathway - page 87","link":"https://radiopaedia.org/courses/trial-pituitary-learning-pathway/pages/87"},{"id":87,"kind":"Course","title":"Pituitary Region Learning Pathway - page 87","link":"https://radiopaedia.org/courses/pituitary-learning-pathway/pages/87"}],"stem":"\u003cp\u003eIn the\u0026nbsp;accompanying MRI image which letter indicates the cavernous internal carotid artery?\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/1456"}],"attemptsPercentages":[{"alternativeId":"7272","percentage":1},{"alternativeId":"7270","percentage":2},{"alternativeId":"7273","percentage":94},{"alternativeId":"7274","percentage":2},{"alternativeId":"7271","percentage":1}],"promptToLogin":false,"questionManager":false,"articleId":"cavernous-sinus"}