Question 1732
{"accessible":true,"alternatives":[{"id":8606,"text":"branches of the A2 segment of the anterior cerebral artery (ACA)"},{"id":8607,"text":"anterior choroidal artery"},{"id":8608,"text":"lenticulostriate arteries"},{"id":8609,"text":"branches of the M2 segment of the middle cerebral artery (MCA)"},{"id":8610,"text":"branches of the P2 segment of the posterior cerebral artery (PCA)"}],"archived":false,"correctAlternativeId":8608,"explanation":"\u003cp\u003eThe\u0026nbsp;\u003ca href=\"/articles/lenticulostriate-arteries\"\u003elenticulostriate arteries\u003c/a\u003e\u0026nbsp;are a collection of small perforating arteries arising from the anterior part of the\u0026nbsp;circle of Willis\u0026nbsp;and supplying the basal ganglia and anterior limb of the internal capsule.\u0026nbsp;\u003c/p\u003e\u003cp\u003eThey are divided into:\u003c/p\u003e\u003col\u003e\n\u003cli\u003e\u003cp\u003e\u003ca href=\"https://radiopaedia.org/articles/medial-lenticulostriate-arteries?lang=gb\"\u003emedial lenticulostriate arteries\u003c/a\u003e\u003c/p\u003e\u003c/li\u003e\n\u003cli\u003e\u003cp\u003e\u003ca href=\"https://radiopaedia.org/articles/lateral-lenticulostriate-arteries?lang=gb\"\u003elateral lenticulostriate arteries\u003c/a\u003e\u0026nbsp;\u003c/p\u003e\u003c/li\u003e\n\u003c/ol\u003e\u003cp\u003eThere is, however, some confusion as to this nomenclature. Most describe the medial arteries arising from the A1 segment of the\u0026nbsp;anterior cerebral artery, and the lateral arteries arising from the M1 segment of the\u0026nbsp;middle cerebral artery.\u0026nbsp;\u0026nbsp;\u003c/p\u003e\u003cp\u003eThe term lenticulostriate infarct should generally be reserved for infarction of a single artery leading to a \u003ca href=\"/articles/lacunar-infarct\"\u003elacunar infarct\u003c/a\u003e. This case is due to M1 disease and is at the upper limit in size of what is accepted for lenticulostriate infarcts but is not clearly a striatocapsular infarct that involves a much larger territory.\u0026nbsp;\u003c/p\u003e","id":1732,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/232/Square-MCQ-1024x1024.013_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":36128},"imageAttributionCaseInfo":{"title":"Lateral lenticulostriate infarction","contributor_name":"Frank Gaillard","contributor_param":"frank","case_rid":36128,"case_param":"lateral-lenticulostriate-infarction"},"firstQuestionPath":"/questions/2591","nextQuestionPath":"/articles/ischaemic-stroke/questions/1731","relatedArticles":[{"id":1085,"title":"Brain arterial vascular territories","link":"/articles/brain-arterial-vascular-territories?lang=us"}],"alsoUsedIn":[{"id":763,"kind":"Course","title":"Stroke Learning Pathway - page 763","link":"https://radiopaedia.org/courses/stroke-learning-pathway/pages/763"},{"id":763,"kind":"Course","title":"Content Previews - page 763","link":"https://radiopaedia.org/courses/previews/pages/763"},{"id":2100,"kind":"Course","title":"Stroke Learning Pathway - peer review - page 2100","link":"https://radiopaedia.org/courses/stroke-learning-pathway-peer-review/pages/2100"}],"stem":"\u003cp\u003eThis infarct corresponds to which vascular territory?\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/1732"}],"attemptsPercentages":[{"alternativeId":"8607","percentage":11},{"alternativeId":"8606","percentage":10},{"alternativeId":"8609","percentage":8},{"alternativeId":"8610","percentage":0},{"alternativeId":"8608","percentage":71}],"promptToLogin":false,"questionManager":false,"articleId":"ischemic-stroke"}