{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T10:12:57Z","timestamp":1760955177441,"version":"3.40.4"},"reference-count":34,"publisher":"BMJ","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BMJ Case Reports"],"published-print":{"date-parts":[[2009]]},"abstract":"<jats:p>Duplicated middle cerebral artery (DMCA) is an anomalous vessel arising from the internal carotid artery. The incidence DMCA is relatively law, and an association between this anomaly and cerebral aneurysms has been documented. There is a controversy whether DMCA may have perforating arteries. This is an important fact to consider in aneurysm surgery. We report the case of a 34-year-old black woman who suffered a subarachnoid hemorrhage and the angiography a left DMCA, and an aneurysm in an inferior branch of the main MCA. The DMCA and the MCA had perforating arteries. The aneurysm was clipped without complications. The observation of perforating arteries in our patient confirms that the DMCA may have perforating arteries. This is very important to be considered in cerebral aneurysms surgery. Moreover, the DMCA may potentially serve as a collateral blood supply to the MCA territory in cases of MCA occlusion.<\/jats:p>","DOI":"10.1136\/bcr.06.2009.2035","type":"journal-article","created":{"date-parts":[[2009,12,4]],"date-time":"2009-12-04T03:45:57Z","timestamp":1259898357000},"page":"bcr0620092035","source":"Crossref","is-referenced-by-count":4,"title":["Duplicated middle cerebral artery: Figure 1"],"prefix":"10.1136","volume":"2009","author":[{"given":"Jesus","family":"Perez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Calixto","family":"Machado","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudio","family":"Scherle","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Hierro","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2009,12,3]]},"reference":[{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.1","doi-asserted-by":"crossref","first-page":"421","DOI":"10.1016\/S0140-6736(62)90281-7","article-title":"Pathology of ruptured middle-cerebral aneurysms \u2013 with special reference to differences between sexes","volume":"2","author":"Crompton","year":"1962","journal-title":"Lancet"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.2","doi-asserted-by":"crossref","first-page":"567","DOI":"10.2214\/ajr.118.3.567","article-title":"Anomalies of middle cerebral artery \u2013 accessory artery, duplication, and early bifurcation","volume":"118","author":"Teal","year":"1973","journal-title":"Am J Roentgenol"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.3","first-page":"45","article-title":"Middle cerebral artery variations: duplicated and accessory arteries","volume":"19","author":"Komiyama","year":"1998","journal-title":"Am J Neuroradiol"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.4","doi-asserted-by":"publisher","DOI":"10.2176\/nmc.28.910"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.5","first-page":"45","article-title":"Middle cerebral artery variations: duplicated and accessory arteries","volume":"19","author":"Komiyama","year":"1998","journal-title":"Am J Neuroradiol"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.6","first-page":"1375","article-title":"Ruptured aneurysm at a duplicated middle cerebral artery with accessory middle cerebral artery \u2013 comment","volume":"146","author":"Pamir","year":"2004","journal-title":"Acta Neurochirurgica"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.7","doi-asserted-by":"publisher","DOI":"10.1007\/s00701-004-0353-x"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.8","doi-asserted-by":"publisher","DOI":"10.1016\/j.surneu.2005.05.032"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.9","doi-asserted-by":"publisher","DOI":"10.1111\/j.1552-6569.2008.00254.x"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.10","doi-asserted-by":"crossref","first-page":"244","DOI":"10.1177\/153857448401800409","article-title":"Superficial temporal artery to middle cerebral-artery anastomoses in the sylvian fissure \u2013 case report","volume":"18","author":"Umansky","year":"1984","journal-title":"Vascular Surgery"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.11","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1984.61.3.0458"},{"key":"2025042508212464000_2009.dec03_1.bcr0620092035.12","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1111\/j.1600-0404.1964.tb02765.x","article-title":"Studies on arteries of brain. 3. 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