Question 465
{"accessible":false,"alternatives":[{"id":2332,"text":"500"},{"id":2333,"text":"800"},{"id":2334,"text":"1100"},{"id":2335,"text":"1400"},{"id":2336,"text":"1700"}],"archived":false,"correctAlternativeId":2332,"explanation":"\u003cp\u003eADC values are typically between 400-600 x 10\u003csup\u003e-6\u003c/sup\u003e mm\u003csup\u003e2\u003c/sup\u003e/s) which is substantially lower than normal brain (700-800\u0026nbsp;x 10\u003csup\u003e-6\u003c/sup\u003e\u0026nbsp;mm\u003csup\u003e2\u003c/sup\u003e/s). This is a feature of high cellularity all so seen other small round blue cell tumors such as medulloblastomas and pineoblastomas.\u0026nbsp;\u003c/p\u003e","id":465,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2132","nextQuestionPath":null,"relatedArticles":[],"alsoUsedIn":[],"stem":"\u003cp\u003eWhat is the approximate expected apparent diffusion coefficient\u0026nbsp;(ADC; x 10\u003csup\u003e-6\u003c/sup\u003e\u0026nbsp;mm\u003csup\u003e2\u003c/sup\u003e/s) of the enhancing component of primary CNS lymphoma?\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/465"}],"attemptsPercentages":[{"alternativeId":"2335","percentage":7},{"alternativeId":"2332","percentage":57},{"alternativeId":"2333","percentage":22},{"alternativeId":"2334","percentage":10},{"alternativeId":"2336","percentage":5}],"promptToLogin":false,"questionManager":false,"articleId":"lymphomas-of-the-central-nervous-system"}