Question 540
{"accessible":true,"alternatives":[{"id":2709,"text":"choroid plexus papilloma"},{"id":2710,"text":"ependymoma"},{"id":2711,"text":"hemangioblastoma"},{"id":2712,"text":"medulloblastoma"},{"id":2713,"text":"pilocytic astrocytoma"}],"archived":false,"correctAlternativeId":2712,"explanation":"\u003cp\u003eThis is a typical appearance for a medulloblastoma, particularly the profoundly depressed ADC values. None of the other tumors would be expected to be this cellular. Choroid plexus papillomas would be more common in the trigone in this age group.\u0026nbsp;\u003c/p\u003e","id":540,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/545/47fd4d875bcd0d1f0d95736c5e4037_big_gallery_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":25742},"imageAttributionCaseInfo":{"title":"Medulloblastoma","contributor_name":"Mohammad A. ElBeialy","contributor_param":"mohammedelbialy88","case_rid":25742,"case_param":"medulloblastoma-21"},"firstQuestionPath":"/questions/1078","nextQuestionPath":"/articles/haemangioblastoma-central-nervous-system-2/questions/526","relatedArticles":[{"id":1290,"title":"Ependymoma","link":"/articles/ependymoma?lang=us"},{"id":5335,"title":"Medulloblastoma","link":"/articles/medulloblastoma?lang=us"},{"id":1876,"title":"Pilocytic astrocytoma","link":"/articles/pilocytic-astrocytoma?lang=us"},{"id":1914,"title":"Posterior cranial fossa tumors","link":"/articles/posterior-cranial-fossa-tumours?lang=us"},{"id":8627,"title":"Choroid plexus papilloma","link":"/articles/choroid-plexus-papilloma-1?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eA two-year-old boy\u0026nbsp;presents with nausea and vomiting. He is assessed with a contrast-enhanced MRI. What is the most likely diagnosis?\u0026nbsp;\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/540"}],"attemptsPercentages":[{"alternativeId":"2710","percentage":18},{"alternativeId":"2709","percentage":4},{"alternativeId":"2713","percentage":9},{"alternativeId":"2711","percentage":3},{"alternativeId":"2712","percentage":66}],"promptToLogin":false,"questionManager":false,"articleId":"hemangioblastoma-central-nervous-system"}