Question 3020
{"accessible":false,"alternatives":[{"id":14672,"text":"3 mm hypercellular bone lesion"},{"id":14673,"text":"ADC value 1600 µm2/s"},{"id":14674,"text":"fat fraction 15%"},{"id":14675,"text":"high b-value signal intensity 2x greater than adjacent muscle"},{"id":14676,"text":"single hypercellular bone lesion"}],"archived":false,"correctAlternativeId":14674,"explanation":"\u003cp\u003eFor a lesion to be considered a “myeloma defining” focal lesion, it must meet all the following criteria:\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cp\u003e\u0026gt;5 mm in size (measured on the fat fraction sequence)\u003c/p\u003e\u003c/li\u003e\u003cli\u003e\u003cp\u003eHigh b-value DWI signal intensity must be at least 3x greater than signal from the adjacent muscle\u003c/p\u003e\u003c/li\u003e\u003cli\u003e\u003cp\u003eADC value between 650 - 1300 µm\u003csup\u003e2\u003c/sup\u003e/s\u003c/p\u003e\u003c/li\u003e\u003cli\u003e\u003cp\u003eFat fraction \u0026lt;20%\u003c/p\u003e\u003c/li\u003e\u003cli\u003e\u003cp\u003eMore than 1 definite myeloma-related lesion\u003c/p\u003e\u003c/li\u003e\u003c/ul\u003e","id":3020,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/3022","nextQuestionPath":null,"relatedArticles":[{"id":9555,"title":"Multiple myeloma","link":"/articles/multiple-myeloma-1?lang=us"}],"alsoUsedIn":[{"id":2175,"kind":"Course","title":"2024 Virtual Conference Private Use - page 2175","link":"https://radiopaedia.org/courses/2024-virtual-conference-private-use/pages/2175"}],"stem":"\u003cp\u003eWhich of the following would be in keeping with a “myeloma defining” focal lesion on WB-MRI?\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/3020"}],"attemptsPercentages":[{"alternativeId":"14674","percentage":33},{"alternativeId":"14672","percentage":33},{"alternativeId":"14675","percentage":33},{"alternativeId":"14673","percentage":0},{"alternativeId":"14676","percentage":0}],"promptToLogin":false,"questionManager":false,"articleId":"whole-body-diffusion-weighted-mri"}