Question 584
{"accessible":false,"alternatives":[{"id":2925,"text":"colorectal carcinoma"},{"id":2926,"text":"gastrointestinal stromal tumor"},{"id":2927,"text":" lymphoid hyerplasia"},{"id":2928,"text":"Meckel diverticulum"},{"id":2929,"text":"small bowel lymphoma"}],"archived":false,"correctAlternativeId":2925,"explanation":"\u003cp\u003eIn adults, a lead point is frequently identified up to 90% of the time, usually malignant in the large bowel and benign in the small bowel. Lead points are numerous and include:\u003c/p\u003e\u003cul\u003e\n\u003cli\u003egastrointestinal malignancy (most common cause in adults, accounting for 65% of cases)\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https://radiopaedia.org/articles/colorectal-carcinoma\"\u003ecolorectal carcinoma\u003c/a\u003e\u0026nbsp;(most common)\u003c/li\u003e\n\u003cli\u003emetastases, e.g.\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/malignant-melanoma\"\u003emalignant melanoma\u003c/a\u003e,\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/breast-neoplasms\"\u003ebreast cancer\u003c/a\u003e,\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/lung-cancer-3\"\u003elung cancer\u003c/a\u003e\n\u003c/li\u003e\n\u003cli\u003e\n\u003ca href=\"https://radiopaedia.org/articles/small-bowel-lymphoma-1\"\u003esmall bowel lymphoma\u003c/a\u003e/\u003ca href=\"https://radiopaedia.org/articles/burkitt-lymphoma\"\u003eBurkitt lymphoma\u003c/a\u003e\u0026nbsp;\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003ebenign neoplasms\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/gastrointestinal-stromal-tumour-1\"\u003egastrointestinal stromal tumor (GIST)\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\n\u003ca href=\"https://radiopaedia.org/articles/missing?article%5Btitle%5D=intestinal-polyps\"\u003eintestinal polyps\u003c/a\u003e\u0026nbsp;\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/gastrointestinal-tract-lipomas\"\u003eintestinal lipoma\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003epolypoid hemangioma\u0026nbsp;\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003econgenital\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/meckel-diverticulum-1\"\u003eMeckel diverticulum\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/fetal-enteric-duplication-cyst\"\u003eduplication cyst\u003c/a\u003e\u003c/li\u003e\n\u003cli\u003e\n\u003ca href=\"https://radiopaedia.org/articles/ectopic-pancreas\"\u003eectopic pancreas\u003c/a\u003e\u0026nbsp;\u003c/li\u003e\n\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003einflammatory\u003cul\u003e\u003cli\u003e\u003ca href=\"https://radiopaedia.org/articles/missing?article%5Btitle%5D=periappendicitis\"\u003eperiappendicitis\u003c/a\u003e\u003c/li\u003e\u003c/ul\u003e\n\u003c/li\u003e\n\u003cli\u003etrauma\u0026nbsp;\u003cul\u003e\u003cli\u003emural hematoma\u003c/li\u003e\u003c/ul\u003e\n\u003c/li\u003e\n\u003c/ul\u003e","id":584,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2649","nextQuestionPath":"/articles/colorectal-cancer-1/questions/449","relatedArticles":[{"id":6758,"title":"Gastrointestinal stromal tumor","link":"/articles/gastrointestinal-stromal-tumour-1?lang=us"},{"id":7058,"title":"Small bowel lymphoma","link":"/articles/small-bowel-lymphoma-1?lang=us"},{"id":17174,"title":"Meckel diverticulum","link":"/articles/meckel-diverticulum-3?lang=us"},{"id":1526,"title":"Intussusception","link":"/articles/intussusception?lang=us"}],"alsoUsedIn":[{"id":624,"kind":"Course","title":"Radiopaedia 2020 - Lectures Only - page 624","link":"https://radiopaedia.org/courses/radiopaedia-2020-exclusive/pages/624"},{"id":624,"kind":"Course","title":"2020 Virtual Conference Private Use - page 624","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/624"},{"id":686,"kind":"Course","title":"Abdominal Emergency Radiology Course - page 686","link":"https://radiopaedia.org/courses/abdominal-emergency-radiology-course-online/pages/686"},{"id":686,"kind":"Course","title":"2020 Virtual Conference Private Use - page 686","link":"https://radiopaedia.org/courses/2020-virtual-conference-private-use/pages/686"}],"stem":"\u003cp\u003eWhat is the most common cause of intussusception in adults?\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/584"}],"attemptsPercentages":[{"alternativeId":"2925","percentage":60},{"alternativeId":"2928","percentage":7},{"alternativeId":"2929","percentage":12},{"alternativeId":"2926","percentage":10},{"alternativeId":"2927","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"colorectal-cancer"}