Question 1849
{"accessible":true,"alternatives":[{"id":9184,"text":"appendicolith"},{"id":9186,"text":"arrowhead sign"},{"id":9183,"text":"cecal bar sign"},{"id":9185,"text":"comb sign"},{"id":9182,"text":"hyperattenuating ring sign"}],"archived":false,"correctAlternativeId":9186,"explanation":"\u003cp\u003eThe\u0026nbsp;\u003ca href=\"/articles/arrowhead-sign\"\u003earrowhead sign\u003c/a\u003e\u0026nbsp;refers to the focal thickening of the cecal\u0026nbsp;pole with funnelling of the oral contrast into the cecal apex assuming an arrowhead appearance which points towards the base of the appendix.\u0026nbsp;It is seen as a secondary sign in\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/appendicitis-2?lang=gb\"\u003eacute appendicitis\u003c/a\u003e\u0026nbsp;and represents an inflammatory extension from the appendix to the cecum.\u003c/p\u003e\u003cp\u003eThe\u0026nbsp;\u003ca href=\"/articles/hyperattenuating-ring-sign\"\u003ehyperattenuating ring sign\u003c/a\u003e\u0026nbsp;refers to the\u0026nbsp;hyperattenuating ring of visceral peritoneum surrounding an inflamed epiploic appendage.\u003c/p\u003e\u003cp\u003eThe\u0026nbsp;\u003ca href=\"/articles/caecal-bar-sign\"\u003ececal bar sign\u003c/a\u003e\u0026nbsp;refers to the appearance of inflammatory soft tissue at the appendiceal base separating it from the contrast-filled\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/caecum?lang=gb\"\u003ececum\u003c/a\u003e.\u003c/p\u003e\u003cp\u003eThe\u0026nbsp;\u003ca href=\"/articles/comb-sign\"\u003ecomb sign\u003c/a\u003e\u0026nbsp;refers to the hypervascular appearance of the mesentery, commonly seen in active\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/crohn-disease-1?lang=gb\"\u003eCrohn disease\u003c/a\u003e.\u003c/p\u003e","id":1849,"imageUrl":"https://prod-images-static.radiopaedia.org/images/53892870/cor00019_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":84254},"imageAttributionCaseInfo":{"title":"Acute appendicitis - arrowhead sign","contributor_name":"Pir Abdul Ahad Aziz Qureshi","contributor_param":"abdulahad","case_rid":84254,"case_param":"acute-appendicitis-arrowhead-sign"},"firstQuestionPath":"/questions/1849","nextQuestionPath":null,"relatedArticles":[{"id":5635,"title":"Appendicolith","link":"/articles/appendicolith?lang=us"},{"id":6781,"title":"Comb sign (mesentery)","link":"/articles/comb-sign-mesentery?lang=us"},{"id":12246,"title":"Arrowhead sign (cecum)","link":"/articles/arrowhead-sign-caecum?lang=us"},{"id":28789,"title":"Hyperattenuating ring sign (epiploic appendagitis)","link":"/articles/hyperattenuating-ring-sign-epiploic-appendagitis?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eA 55-year-old\u0026nbsp;female presented to the emergency department complaining\u0026nbsp;of right iliac fossa pain. Subsequently, she underwent a CT scan abdomen which revealed acute appendicitis. A single CT scan image is provided.\u003c/p\u003e\u003cp\u003eWhich of the following signs of acute appendicitis is shown on the provided image?\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/1849"}],"attemptsPercentages":[{"alternativeId":"9186","percentage":46},{"alternativeId":"9185","percentage":3},{"alternativeId":"9184","percentage":12},{"alternativeId":"9183","percentage":30},{"alternativeId":"9182","percentage":10}],"promptToLogin":false,"questionManager":false,"articleId":"cecal-bar-sign-acute-appendicitis"}