{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T06:43:00Z","timestamp":1777876980762,"version":"3.51.4"},"reference-count":11,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2023,5,5]],"date-time":"2023-05-05T00:00:00Z","timestamp":1683244800000},"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":["Neuroradiol J"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:p>Here, we describe a case of a woman suspected to have an anterior cerebral artery (ACA) aneurysm that was ultimately found to have an azygous ACA shield. This benign entity highlights the importance of thorough investigation with cerebral digital subtraction angiography (DSA). This 73-year-old female initially presented with dyspnea and dizziness. CT angiogram of the head suggested an incidental 5\u00a0mm ACA aneurysm. Subsequent DSA demonstrated a Type I azygos ACA supplied by the left A1 segment. Also noted was a focal dilatation of the azygos trunk as it gave rise to the bilateral pericallosal and callosomarginal arteries. Three-dimensional visualization demonstrated a benign dilatation secondary to the four vessels branching; no aneurysm was noted. Incidence of aneurysms at the distal dividing point of an azygos ACA ranges from 13% to 71%. However, careful anatomical examination is imperative as findings may be a benign dilatation for which case intervention is not indicated.<\/jats:p>","DOI":"10.1177\/19714009231173106","type":"journal-article","created":{"date-parts":[[2023,5,5]],"date-time":"2023-05-05T07:53:54Z","timestamp":1683273234000},"page":"244-246","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Azygos anterior cerebral artery shield masquerading as an aneurysm"],"prefix":"10.1177","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6886-1112","authenticated-orcid":false,"given":"Alexander","family":"Andreev","sequence":"first","affiliation":[{"name":"Beth Israel Deaconess Medical Center, Department of Neurology, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6000-6709","authenticated-orcid":false,"given":"Justin E","family":"Vranic","sequence":"additional","affiliation":[{"name":"Massachusetts General Hospital, Department of Neurosurgery, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Omer","family":"Doron","sequence":"additional","affiliation":[{"name":"Massachusetts General Hospital, Department of Neurosurgery, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2958-3484","authenticated-orcid":false,"given":"Robert W","family":"Regenhardt","sequence":"additional","affiliation":[{"name":"Massachusetts General Hospital, Department of Neurosurgery, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aman B","family":"Patel","sequence":"additional","affiliation":[{"name":"Massachusetts General Hospital, Department of Neurosurgery, Boston, MA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,5,5]]},"reference":[{"key":"bibr1-19714009231173106","first-page":"16","volume":"10","author":"Tahir RA","year":"2019","journal-title":"J Vasc Interv Neurol"},{"key":"bibr2-19714009231173106","doi-asserted-by":"publisher","DOI":"10.3171\/foc.2004.17.5.12"},{"key":"bibr3-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1148\/rg.294085730"},{"key":"bibr4-19714009231173106","doi-asserted-by":"publisher","DOI":"10.5137\/1019-5149.JTN.14294-15.1"},{"key":"bibr5-19714009231173106","doi-asserted-by":"publisher","DOI":"10.3340\/jkns.2007.42.4.342"},{"key":"bibr6-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2020.117161"},{"key":"bibr7-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2014.08.023"},{"key":"bibr8-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1155\/2012\/792834"},{"key":"bibr9-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2012.12.001"},{"key":"bibr10-19714009231173106","doi-asserted-by":"publisher","DOI":"10.4103\/2152-7806.85607"},{"key":"bibr11-19714009231173106","doi-asserted-by":"publisher","DOI":"10.1161\/01.str.0000019510.32145.a9"}],"container-title":["The Neuroradiology Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009231173106","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/19714009231173106","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009231173106","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T22:37:56Z","timestamp":1777588676000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/19714009231173106"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,5,5]]},"references-count":11,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2024,4]]}},"alternative-id":["10.1177\/19714009231173106"],"URL":"https:\/\/doi.org\/10.1177\/19714009231173106","relation":{},"ISSN":["1971-4009","2385-1996"],"issn-type":[{"value":"1971-4009","type":"print"},{"value":"2385-1996","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,5,5]]}}}