{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T13:43:21Z","timestamp":1777729401342,"version":"3.51.4"},"reference-count":12,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2012,6,1]],"date-time":"2012-06-01T00:00:00Z","timestamp":1338508800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Interv Neuroradiol"],"published-print":{"date-parts":[[2012,6]]},"abstract":"<jats:p>Pilocytic astrocytomas are highly vascular, relatively common primary brain tumors in the pediatric population, but their association with a true arteriovenous malformation (AVM) is extremely rare. We describe an eight-year-old girl with a right supratentorial juvenile pilocytic astrocytoma (WHO grade I) with an angiographically documented AVM entangled in the tumor mass who presented with intracranial hemorrhage due to a ruptured anterior choroidal artery pseudoaneurysm encased in the lesion. The AVM nidus as well as the hemorrhage site was embolized with Onyx. A literature review revealed only one previous report of a true intermixture of these two lesions. We hypothesize whether the association of vascular malformations and primary brain tumors are merely coincidental or if they point to the existence of a distinct entity and\/or a common etiologic factor.<\/jats:p>","DOI":"10.1177\/159101991201800203","type":"journal-article","created":{"date-parts":[[2017,1,11]],"date-time":"2017-01-11T03:50:29Z","timestamp":1484106629000},"page":"140-147","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Juvenile Pilocytic Astrocytoma in Association with Arteriovenous Malformation"],"prefix":"10.1177","volume":"18","author":[{"given":"M.","family":"Soltanolkotabi","sequence":"first","affiliation":[{"name":"Department of Radiology, Northwestern University Feinberg School of Medicine; Chicago, IL, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.E.","family":"Schoeneman","sequence":"additional","affiliation":[{"name":"Department of Medical Imaging, Anne & Robert H. 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