Question 2260
{"accessible":false,"alternatives":[{"id":11196,"text":"significantly darker than brain parenchyma (lower values)"},{"id":11197,"text":"similar to brain parenchyma"},{"id":11198,"text":"significantly brighter than brain parenchyma (higher values) "},{"id":11199,"text":"similar to CSF"}],"archived":false,"correctAlternativeId":11197,"explanation":"\u003cp\u003eEpidermoid cysts appear very bright on b=1000 DWI images due to a combination of moderate diffusion restriction (similar to brain parenchyma) and T2-shine through.\u0026nbsp;\u003c/p\u003e","id":2260,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2260","nextQuestionPath":"/articles/t2-shine-through/questions/1790","relatedArticles":[{"id":21759,"title":"Apparent diffusion coefficient","link":"/articles/apparent-diffusion-coefficient-1?lang=us"},{"id":1293,"title":"Intracranial epidermoid cyst","link":"/articles/intracranial-epidermoid-cyst?lang=us"}],"alsoUsedIn":[{"id":1179,"kind":"Course","title":"Adult Neuroradiology Review Course - page 1179","link":"https://radiopaedia.org/courses/adult-neuroradiology-review-course/pages/1179"},{"id":1179,"kind":"Course","title":"Adult Neuroradiology Review Course - page 1179","link":"https://radiopaedia.org/courses/adult-brain-mri-review-course-2015-online-video/pages/1179"}],"stem":"\u003cp\u003eIntracranial epidermoid cysts demonstrate diffusion restriction (on apparent diffusion coefficient - ADC) ...\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/2260"}],"attemptsPercentages":[{"alternativeId":"11197","percentage":25},{"alternativeId":"11196","percentage":47},{"alternativeId":"11198","percentage":20},{"alternativeId":"11199","percentage":8}],"promptToLogin":false,"questionManager":false,"articleId":"t2-shine-through"}