Question 1098
{"accessible":true,"alternatives":[{"id":5486,"text":"focal hepatosteatosis"},{"id":5487,"text":"focal nodular hyperplasia"},{"id":5488,"text":"hepatic adenoma"},{"id":5489,"text":"hepatocellular carcinoma"}],"archived":false,"correctAlternativeId":5486,"explanation":"\u003cp\u003eThere is a T1 isointense region in hepatic segment IVb adjacent to the falciform ligament which shows signal dropout on the out-of-phase T1 image indicating the presence of fat. \u003ca href=\"/articles/hepatic-adenoma\" title=\"Hepatic adenoma\"\u003eHepatic adenoma\u003c/a\u003e and \u003ca href=\"/articles/hepatocellular-carcinoma\" title=\"Hepatocellular carcinoma\"\u003ehepatocellular carcinoma\u003c/a\u003e may both demonstrate signal loss due to the presence of intra-tumoral fat however this is not usually a prominent feature and the geographic nature and location of the abnormality in this case strongly favors \u003ca href=\"/articles/focal-hepatic-steatosis\" title=\"Focal fat infiltration\"\u003efocal fat infiltration\u003c/a\u003e. Signal loss on out-of-phase T1 is not a feature of \u003ca href=\"/articles/focal-nodular-hyperplasia\" title=\"Focal nodular hyperplasia\"\u003efocal nodular hyperplasia\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\u003c/p\u003e","id":1098,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/691/focal-fatty-change_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":7935},"imageAttributionCaseInfo":{"title":"Focal fatty change","contributor_name":"Frank Gaillard","contributor_param":"frank","case_rid":7935,"case_param":"focal-fatty-change"},"firstQuestionPath":"/questions/2071","nextQuestionPath":null,"relatedArticles":[{"id":1442,"title":"Hepatocellular carcinoma","link":"/articles/hepatocellular-carcinoma?lang=us"},{"id":1440,"title":"Hepatic adenoma","link":"/articles/hepatic-adenoma?lang=us"},{"id":1344,"title":"Focal hepatic steatosis","link":"/articles/focal-hepatic-steatosis?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\u003eLiver MRI with in and out of phase T1 weighted images. What is the most likely diagnosis?\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/1098"}],"attemptsPercentages":[{"alternativeId":"5487","percentage":5},{"alternativeId":"5486","percentage":77},{"alternativeId":"5488","percentage":14},{"alternativeId":"5489","percentage":4}],"promptToLogin":false,"questionManager":false,"articleId":"focal-nodular-hyperplasia"}