Question 653
{"accessible":true,"alternatives":[{"id":3269,"text":"Dandy-Walker malformation"},{"id":3270,"text":"diastematomyelia"},{"id":3271,"text":"Chiari II malformation"},{"id":3272,"text":"Joubert syndrome"},{"id":3273,"text":"rhomboencephalosynapsis "}],"archived":false,"correctAlternativeId":3272,"explanation":"\u003cp\u003eJoubert anomaly, also known as vermian aplasia or molar tooth midbrain-hindbrain malformation, is an autosomal recessive disorder where there is a variable degree of cerebellar vermian agenesis. The cerebellar hemispheres abut\u0026nbsp;each other but are not fused.\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003c/p\u003e","id":653,"imageUrl":"https://prod-images-static.radiopaedia.org/images/29116586/e90b4b2d7bb05f43e1043b5cea7b25_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":51880},"imageAttributionCaseInfo":{"title":"Joubert syndrome","contributor_name":"Dalia Ibrahim","contributor_param":"dalia","case_rid":51880,"case_param":"joubert-syndrome-10"},"firstQuestionPath":"/questions/820","nextQuestionPath":"/articles/joubert-syndrome-1/questions/630","relatedArticles":[{"id":891,"title":"Cerebellum","link":"/articles/cerebellum?lang=us"},{"id":5786,"title":"Chiari II malformation","link":"/articles/chiari-ii-malformation?lang=us"},{"id":8344,"title":"Rhombencephalosynapsis","link":"/articles/rhombencephalosynapsis?lang=us"},{"id":4590,"title":"Dandy-Walker malformation","link":"/articles/dandy-walker-malformation-1?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eThis 2-year-old boy presents with developmental delay and ataxia. What is the diagnosis?\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/653"}],"attemptsPercentages":[{"alternativeId":"3272","percentage":49},{"alternativeId":"3271","percentage":15},{"alternativeId":"3273","percentage":16},{"alternativeId":"3270","percentage":3},{"alternativeId":"3269","percentage":16}],"promptToLogin":false,"questionManager":false,"articleId":"joubert-syndrome"}