Question 1096
{"accessible":true,"alternatives":[{"id":5478,"text":"medullary sponge kidney"},{"id":5479,"text":"putty kidney"},{"id":5480,"text":"Von Hippel-Lindau disease"},{"id":5481,"text":"xanthogranulomatous pyelonephritis"}],"archived":false,"correctAlternativeId":5478,"explanation":"\u003cp\u003eBilateral clustered renal calcifications corresponding to the medullary pyramids with \u003ca href=\"/articles/paintbrush-appearance\"\u003epaintbrush appearance\u003c/a\u003e in keeping with \u003ca href=\"/articles/medullary-sponge-kidney\"\u003emedullary sponge kidney\u003c/a\u003e. \u003ca href=\"/articles/putty-kidney\"\u003ePutty kidney\u003c/a\u003e due to tuberculosis would be unilateral and result in a diffusely calcified and small kidney. \u003ca href=\"/articles/von-hippel-lindau-disease-5\"\u003eVon Hippel-Lindau disease\u003c/a\u003e is associated with renal cysts and \u003ca href=\"/articles/renal-angiomyolipoma\"\u003erenal angiomyolipomas\u003c/a\u003e (which occasionally can calcify), and an\u0026nbsp;increased risk \u003ca href=\"/articles/renal-cell-carcinoma-1\" title=\"Renal cell carcinoma\"\u003erenal cell carcinoma\u003c/a\u003e. \u003ca href=\"/articles/xanthogranulomatous-pyelonephritis\"\u003eXanthogranulomatous pyelonephritis\u003c/a\u003e is associated with \u003ca href=\"/articles/staghorn-calculus-kidney\"\u003estaghorn calculi\u003c/a\u003e.\u003c/p\u003e\u003cp\u003e\u003cstrong\u003eFrom:\u003c/strong\u003e\u0026nbsp;\u003ca href=\"https://radiopaedia.org/courses/radiology-review-course-online\"\u003eRadiology Review Course - Online\u003c/a\u003e\u0026nbsp;\u003c/p\u003e","id":1096,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/697/medullary-sponge-kidney_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":7886},"imageAttributionCaseInfo":{"title":"Medullary sponge kidney","contributor_name":"Frank Gaillard","contributor_param":"frank","case_rid":7886,"case_param":"medullary-sponge-kidney"},"firstQuestionPath":"/questions/2140","nextQuestionPath":"/articles/von-hippel-lindau-disease-5/questions/821","relatedArticles":[{"id":1653,"title":"Medullary sponge kidney","link":"/articles/medullary-sponge-kidney?lang=us"},{"id":12892,"title":"Putty kidney","link":"/articles/putty-kidney?lang=us"},{"id":9944,"title":"Xanthogranulomatous pyelonephritis","link":"/articles/xanthogranulomatous-pyelonephritis?lang=us"}],"alsoUsedIn":[{"id":234,"kind":"Course","title":"Radiology Review Course - Melbourne - page 234","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2019/pages/234"},{"id":234,"kind":"Course","title":"Radiology Review Course - Melbourne - page 234","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2018/pages/234"},{"id":234,"kind":"Course","title":"Radiology Review Course - Melbourne - page 234","link":"https://radiopaedia.org/courses/radiology-review-course-melbourne-2020/pages/234"},{"id":234,"kind":"Course","title":"Radiology Review Course - page 234","link":"https://radiopaedia.org/courses/radiology-review-course-online/pages/234"}],"stem":"\u003cp\u003eWhat is the most likely 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/1096"}],"attemptsPercentages":[{"alternativeId":"5478","percentage":77},{"alternativeId":"5480","percentage":3},{"alternativeId":"5481","percentage":9},{"alternativeId":"5479","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"von-hippel-lindau-disease"}