Question 544
{"accessible":false,"alternatives":[{"id":2727,"text":"ascending paracaecal preileal"},{"id":2728,"text":"ascending paracaecal retroileal"},{"id":2729,"text":"ascending retrocaecal"},{"id":2730,"text":"subcaecal"},{"id":2731,"text":"transverse retrocaecal"}],"archived":false,"correctAlternativeId":2729,"explanation":"\u003cp\u003eThe location of the base of the appendix is relatively constant, located roughly between the ileocaecal valve and the apex of the caecum. This relationship is maintained even when the caecum is mobile.\u003c/p\u003e\u003cp\u003eThe location of the tip of the\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/appendix\"\u003eappendix\u003c/a\u003e\u0026nbsp;is much more variable,\u0026nbsp;especially as the length of the appendix has an extensive range (2-20 cm). The distribution of positions are described as:\u003c/p\u003e\u003cul\u003e\u003cli\u003ebehind the caecum (ascending retrocaecal): 65%\u003c/li\u003e\u003cli\u003einferior to the caecum (subcaecal): 30%\u003c/li\u003e\u003cli\u003ebehind the caecum (transverse retrocaecal): 2%\u003c/li\u003e\u003cli\u003eanterior to the ileum (ascending paracaecal preileal): 1%\u003c/li\u003e\u003cli\u003eposterior to the ileum (ascending paracaecal retroileal): 0.5%\u003c/li\u003e\u003c/ul\u003e","id":544,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/1864","nextQuestionPath":"/articles/appendix-1/questions/434","relatedArticles":[{"id":922,"title":"Acute appendicitis","link":"/articles/acute-appendicitis-2?lang=gb"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhere is the most common location of the tip of the appendix?\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/544"}],"attemptsPercentages":[{"alternativeId":"2728","percentage":8},{"alternativeId":"2729","percentage":66},{"alternativeId":"2731","percentage":11},{"alternativeId":"2730","percentage":8},{"alternativeId":"2727","percentage":8}],"promptToLogin":false,"questionManager":false,"articleId":"appendix"}