Question 1773
{"accessible":true,"alternatives":[{"id":8805,"text":"Bosniak I"},{"id":8806,"text":"Bosniak II"},{"id":8807,"text":"Bosniak IIF"},{"id":8808,"text":"Bosniak III"},{"id":8809,"text":"Bosniak IV"}],"archived":false,"correctAlternativeId":8809,"explanation":"\u003cp\u003eThere is a small relatively well-circumscribed exophytic mass arising from the lower pole of the left kidney with central necrosis and peripheral enhancing solid component. These CT features are those of Bosniak grade IV which is considered ~100% malignant and treated by partial or total nephrectomy.\u003c/p\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e","id":1773,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/268/bosniak-cyst-type-iv-1__1__big_gallery.jpeg","imageAttribution":{"kind":"case","rID":23525},"imageAttributionCaseInfo":{"title":"Renal cyst - Bosniak IV","contributor_name":"Ian Bickle","contributor_param":"clonvara","case_rid":23525,"case_param":"renal-cyst-bosniak-iv-4"},"firstQuestionPath":"/questions/1946","nextQuestionPath":null,"relatedArticles":[{"id":9866,"title":"Renal mass","link":"/articles/renal-mass?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich\u0026nbsp;grade of renal cystic masses is shown on this selected enhanced coronal CT image, according to the Bosniak classification?\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/1773"}],"attemptsPercentages":[{"alternativeId":"8809","percentage":56},{"alternativeId":"8806","percentage":6},{"alternativeId":"8807","percentage":11},{"alternativeId":"8808","percentage":25},{"alternativeId":"8805","percentage":3}],"promptToLogin":false,"questionManager":false,"articleId":"bosniak-classification-system-of-renal-cystic-masses-version-2005"}