{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T23:09:01Z","timestamp":1783033741572,"version":"3.54.6"},"reference-count":52,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","license":[{"start":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T00:00:00Z","timestamp":1721001600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Cosmet Laser Ther"],"published-print":{"date-parts":[[2024,7,15]]},"abstract":"\n BACKGROUND<\/jats:title>\n The fetal-type posterior cerebral artery (PCA) is defined as a variant anatomy in which the posterior communicating artery (PCOM) is larger than the hypoplastic or aplastic P1 segment of the PCA. The authors present the novel case of a patient with a duplicated right PCA in parallel with fetal-type and conventional PCAs supplying adjacent components of the PCA cerebral territory.<\/jats:p>\n <\/jats:sec>\n \n OBSERVATIONS<\/jats:title>\n A 59-year-old woman presented with a modified Fisher Scale score 4 subarachnoid hemorrhage. A right irregular PCOM aneurysm that measured 9.5 mm \u00d7 4.5 mm \u00d7 4.5 mm arose from the base of a variant branch supplying a portion of the PCA, rather than a conventional PCOM, and was found on digital subtraction angiography. Following endovascular coil embolization, the patient was discharged home.<\/jats:p>\n <\/jats:sec>\n \n LESSONS<\/jats:title>\n The fetal-type variant has implications for thromboembolic events. If an embolism occludes the anterior circulation in a patient with a fetal-type PCA, it may result in an infarct in the PCA territory. Awareness of cerebral arterial anatomy, including an atypical collateral supply, informs a treating team\u2019s latitude in tolerance of which sites must be preserved and which can be safely sacrificed.<\/jats:p>\n \n https:\/\/thejns.org\/doi\/10.3171\/CASE23735<\/jats:ext-link>\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3171\/case23735","type":"journal-article","created":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T02:50:51Z","timestamp":1721011851000},"source":"Crossref","is-referenced-by-count":3,"title":["Rare simultaneous fetal posterior cerebral artery and conventional posterior cerebral artery duplication in a patient with a ruptured posterior communicating artery aneurysm: illustrative case"],"prefix":"10.3171","volume":"8","author":[{"given":"Abrar A","family":"Ahmed","sequence":"first","affiliation":[{"name":"Schulich School of Medicine and Dentistry"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00f6kce","family":"Hatipoglu Majernik","sequence":"additional","affiliation":[{"name":"Department of Clinical Neurological Sciences, London Health Sciences Centre"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alonso","family":"Alvarado-Bola\u00f1o","sequence":"additional","affiliation":[{"name":"Department of Clinical Neurological Sciences, London Health Sciences Centre"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Bres-Bullrich","sequence":"additional","affiliation":[{"name":"Department of Clinical Neurological Sciences, London Health Sciences Centre"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachin K","family":"Pandey","sequence":"additional","affiliation":[{"name":"Department of Medical Imaging, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"7","key":"bib1","series-title":"Clin Anat","first-page":"978","article-title":"Anatomical variations of the circle of Willis and their prevalence, with a focus on the posterior communicating artery: a literature review and meta-analysis","volume":"34","author":"Jones","year":"2021","unstructured":"Jones JDCastanho PBazira PSanders K. Anatomical variations of the circle of Willis and their prevalence, with a focus on the posterior communicating artery: a literature review and meta-analysis. Clin Anat. 2021;34(7):978-990."},{"issue":"2","key":"bib2","series-title":"Neuroradiology","first-page":"141","article-title":"Variations of the posterior cerebral artery diagnosed by MR angiography at 3 tesla","volume":"58","author":"Uchino","year":"2016","unstructured":"Uchino ASaito NTakahashi MOkano NTanisaka M. Variations of the posterior cerebral artery diagnosed by MR angiography at 3 tesla. Neuroradiology. 2016;58(2):141-146."},{"issue":"7","key":"bib3","series-title":"Cureus","first-page":"e5064","article-title":"A fetal-type variant posterior communicating artery and its clinical significance","volume":"11","author":"Capone","year":"2019","unstructured":"Capone SShah NGeorge-St Bernard RR. A fetal-type variant posterior communicating artery and its clinical significance. 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Fetal-type posterior cerebral artery and association of rupture in posterior communicating artery aneurysms: a systematic review and meta-analysis. Clin Neurol Neurosurg. 2023;231:107815."},{"issue":"8","key":"bib10","series-title":"J Neurointerv Surg","first-page":"783","article-title":"Impact of fetal-type posterior cerebral artery on recanalization of posterior communicating artery aneurysms after coil embolization: matched-pair case\u2013control study","volume":"12","author":"Choi","year":"2020","unstructured":"Choi HHCho YDYoo DH, et al. Impact of fetal-type posterior cerebral artery on recanalization of posterior communicating artery aneurysms after coil embolization: matched-pair case\u2013control study. 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Clin Imaging. 2014;38(3):221-225."},{"issue":"7","key":"bib1","series-title":"Clin Anat","first-page":"978","article-title":"Anatomical variations of the circle of Willis and their prevalence, with a focus on the posterior communicating artery: a literature review and meta-analysis","volume":"34","author":"Jones","year":"2021","unstructured":"Jones JDCastanho PBazira PSanders K. Anatomical variations of the circle of Willis and their prevalence, with a focus on the posterior communicating artery: a literature review and meta-analysis. Clin Anat. 2021;34(7):978-990."},{"issue":"2","key":"bib2","series-title":"Neuroradiology","first-page":"141","article-title":"Variations of the posterior cerebral artery diagnosed by MR angiography at 3 tesla","volume":"58","author":"Uchino","year":"2016","unstructured":"Uchino ASaito NTakahashi MOkano NTanisaka M. Variations of the posterior cerebral artery diagnosed by MR angiography at 3 tesla. Neuroradiology. 2016;58(2):141-146."},{"issue":"7","key":"bib3","series-title":"Cureus","first-page":"e5064","article-title":"A fetal-type variant posterior communicating artery and its clinical significance","volume":"11","author":"Capone","year":"2019","unstructured":"Capone SShah NGeorge-St Bernard RR. A fetal-type variant posterior communicating artery and its clinical significance. Cureus. 2019;11(7):e5064."},{"issue":"2","key":"bib4","series-title":"J Stroke","first-page":"144","article-title":"A functional perspective on the embryology and anatomy of the cerebral blood supply","volume":"17","author":"Menshawi","year":"2015","unstructured":"Menshawi KMohr JPGutierrez J. A functional perspective on the embryology and anatomy of the cerebral blood supply. 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Is fetal-type posterior cerebral artery a risk factor for intracranial aneurysm as analyzed by multislice CT angiography?Exp Ther Med. 2018;15(1):838-846."},{"key":"bib9","series-title":"Clin Neurol Neurosurg","first-page":"107815","article-title":"Fetal-type posterior cerebral artery and association of rupture in posterior communicating artery aneurysms: a systematic review and meta-analysis","volume":"231","author":"Arrambide-Garza","year":"2023","unstructured":"Arrambide-Garza FJAlvarez-Lozada LAde Le\u00f3n-Guti\u00e9rrez H, et al. Fetal-type posterior cerebral artery and association of rupture in posterior communicating artery aneurysms: a systematic review and meta-analysis. 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AJNR Am J Neuroradiol. 2006;27(8):1770-1775."},{"issue":"4","key":"bib14","series-title":"Surg Radiol Anat","first-page":"359","article-title":"Complete duplication of the posterior cerebral artery","volume":"45","author":"Endo","year":"2023","unstructured":"Endo HOno HNakamura H. Complete duplication of the posterior cerebral artery. Surg Radiol Anat. 2023;45(4):359-361."},{"issue":"3","key":"bib15","series-title":"J Anat Physiol","first-page":"244","article-title":"Two cases of reduplication of the arteria cerebri posterior","volume":"44","author":"Gordon-Shaw","year":"1910","unstructured":"Gordon-Shaw C. Two cases of reduplication of the arteria cerebri posterior. J Anat Physiol. 1910;44(3):244-248."},{"issue":"1","key":"bib16","series-title":"J Neurosurg","first-page":"84","article-title":"Fenestration of the oculomotor nerve by a duplicated posterior cerebral artery and aneurysm: case report","volume":"111","author":"Binning","year":"2009","unstructured":"Binning MJCouldwell WT. 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Acta Neurol Belg. 2021;121(6):1839-1842."},{"issue":"1","key":"bib19","series-title":"Surg Radiol Anat","first-page":"35","article-title":"Duplicated fetal posterior cerebral artery in a patient with a ruptured fetal posterior cerebral artery aneurysm: a cerebrovascular variant","volume":"45","author":"Fisher","year":"2023","unstructured":"Fisher JRussell KMascitelli J. Duplicated fetal posterior cerebral artery in a patient with a ruptured fetal posterior cerebral artery aneurysm: a cerebrovascular variant. Surg Radiol Anat. 2023;45(1):35-38."},{"issue":"10","key":"bib20","series-title":"Surg Radiol Anat","first-page":"1267","article-title":"Fetal posterior cerebral artery duplication, true fetal posterior cerebral artery variation and trifurcation anterior cerebral artery association","volume":"42","author":"Kaplanoglu","year":"2020","unstructured":"Kaplanoglu HTuran AKaplanoglu VKaracif O. Fetal posterior cerebral artery duplication, true fetal posterior cerebral artery variation and trifurcation anterior cerebral artery association. Surg Radiol Anat. 2020;42(10):1267-1270."},{"issue":"10","key":"bib21","series-title":"Eur Radiol","first-page":"2548","article-title":"Anatomic variations of the cerebral arteries and their embryology: a pictorial review","volume":"12","author":"Okahara","year":"2002","unstructured":"Okahara MKiyosue HMori HTanoue SSainou MNagatomi H. Anatomic variations of the cerebral arteries and their embryology: a pictorial review. Eur Radiol. 2002;12(10):2548-2561."},{"issue":"2","key":"bib22","series-title":"Medicina (Kaunas)","first-page":"231","article-title":"The fetal type of posterior cerebral artery","volume":"59","author":"Davidoiu","year":"2023","unstructured":"Davidoiu AMMinc\u0103 DIRusu MCHostiuc SToader C. The fetal type of posterior cerebral artery. 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