Question 618
{"accessible":false,"alternatives":[{"id":3099,"text":"the most common cause intracranial aneurysms"},{"id":3100,"text":"usually caused by Staphlycoccus aureus"},{"id":3101,"text":"usually located distally within the arterial tree"},{"id":3102,"text":"usually the result of direct extension from meningitis"}],"archived":false,"correctAlternativeId":3101,"explanation":"\u003cp\u003eMycotic aneurysms account for only 3-6% of all intracranial aneurysms. They are usually located distally in the arterial tree and are usually the result of septic emboli, most commonly from endocarditis. Direct extension from adjacent infection (e.g. meningitis) is a less common cause. Numerous infective agents are responsible, including bacteria and fungi, often of relatively low virulence.\u0026nbsp;\u003c/p\u003e","id":618,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2320","nextQuestionPath":"/articles/subarachnoid-haemorrhage/questions/612","relatedArticles":[{"id":986,"title":"Saccular cerebral aneurysm","link":"/articles/saccular-cerebral-aneurysm?lang=us"},{"id":1706,"title":"Mycotic aneurysm","link":"/articles/mycotic-aneurysm?lang=us"}],"alsoUsedIn":[{"id":1184,"kind":"Course","title":"Adult Neuroradiology Review Course - page 1184","link":"https://radiopaedia.org/courses/adult-neuroradiology-review-course/pages/1184"},{"id":1184,"kind":"Course","title":"Adult Neuroradiology Review Course - page 1184","link":"https://radiopaedia.org/courses/adult-brain-mri-review-course-2015-online-video/pages/1184"}],"stem":"\u003cp\u003eIntracranial mycotic aneurysms are…\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/618"}],"attemptsPercentages":[{"alternativeId":"3100","percentage":22},{"alternativeId":"3101","percentage":67},{"alternativeId":"3099","percentage":3},{"alternativeId":"3102","percentage":9}],"promptToLogin":false,"questionManager":false,"articleId":"subarachnoid-hemorrhage"}