Question 1686
{"accessible":true,"alternatives":[{"id":8385,"text":"lymphoma"},{"id":8386,"text":"renal cell carcinoma"},{"id":8387,"text":"metastases"},{"id":8388,"text":"oncocytoma"},{"id":8389,"text":"transitional cell carcinoma"}],"archived":false,"correctAlternativeId":8389,"explanation":"\u003cp\u003eThis is a \u003ca href=\"/articles/horseshoe-kidney\"\u003ehorseshoe kidney\u003c/a\u003e, which is the most common form or renal fusion anomaly. While malignancy in a horseshoe kidney is rare, patients with a horseshoe kidney are at increased risk of:\u003c/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eWilms tumour\u003c/p\u003e\u003c/li\u003e\n\u003cli\u003e\u003cp\u003etransitional cell carcinoma of the renal pelvis\u003c/p\u003e\u003c/li\u003e\n\u003cli\u003e\u003cp\u003erenal carcinoid\u003c/p\u003e\u003c/li\u003e\n\u003c/ul\u003e\u003cp\u003eIt should be noted that renal cell carcinomas are the most common tumour in a horseshoe kidney but these occur at the same rate as the general population.\u0026nbsp;\u003c/p\u003e","id":1686,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/185/18cfab11-82c2-4b80-81b9-bdddda9c5388_big_gallery.jpeg","imageAttribution":{"kind":"own","user_id":18339,"user_param":"henryknipe","user_name":"Henry Knipe"},"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2091","nextQuestionPath":null,"relatedArticles":[{"id":1969,"title":"Renal oncocytoma","link":"/articles/renal-oncocytoma?lang=gb"},{"id":9813,"title":"Transitional cell carcinoma (urinary tract)","link":"/articles/transitional-cell-carcinoma-urinary-tract?lang=gb"},{"id":7534,"title":"Renal cell carcinoma","link":"/articles/renal-cell-carcinoma-1?lang=gb"},{"id":1463,"title":"Horseshoe kidney","link":"/articles/horseshoe-kidney?lang=gb"},{"id":9814,"title":"Transitional cell carcinoma (renal pelvis)","link":"/articles/transitional-cell-carcinoma-renal-pelvis?lang=gb"}],"alsoUsedIn":[],"stem":"\u003cp\u003eAn incidental finding is seen on this axial contrast-enhanced CT image. Which malignancy is this patient at increased risk of?\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/1686"}],"attemptsPercentages":[{"alternativeId":"8386","percentage":44},{"alternativeId":"8388","percentage":3},{"alternativeId":"8385","percentage":5},{"alternativeId":"8389","percentage":46},{"alternativeId":"8387","percentage":3}],"promptToLogin":false,"questionManager":false,"articleId":"renal-lymphoma"}