{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T19:25:13Z","timestamp":1768591513480,"version":"3.49.0"},"reference-count":14,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1984,3]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 This study of the posterior communicating artery (PCoA) in 126 cranial cavities of adult cadavers revealed some hitherto unreported anomalies. These included: the origin of one PCoA from the ophthalmic artery inside the optic canal; the presence of three PCoA's on one side; the occurrence of two posterior cerebral arteries of different origin on one side; and the existence of junctional dilatations at both ends of a PCoA. Junctional dilatation at the commencement of the artery was seen in 6.3% of cases. More common anomalies were a fetal type of posterior cerebral artery in 31.7% and macroaneurysmal dilatation of the PCoA in 39.7% of cases. The presence of multiple arteries makes possible normal circulation in cases involving obstruction to any one of them. The junctional dilatation or dilatation of any other part of the PCoA, if pre-aneurysmal, may leak or rupture to produce subarachnoid hemorrhage. Arteries pressing on the oculomotor nerve may produce diplopia, and those compressing the optic chiasm and tracts may cause visual defects.<\/jats:p>","DOI":"10.3171\/jns.1984.60.3.0572","type":"journal-article","created":{"date-parts":[[2009,5,8]],"date-time":"2009-05-08T16:22:49Z","timestamp":1241799769000},"page":"572-576","source":"Crossref","is-referenced-by-count":71,"title":["Anomalies of the posterior communicating artery and their potential clinical significance"],"prefix":"10.3171","volume":"60","author":[{"given":"Krishna Kumar","family":"Bisaria","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Callander's Surgical Anatomy","first-page":"27","author":"Anson","year":"1958"},{"key":"b2","series-title":"JAMA","doi-asserted-by":"publisher","first-page":"358","DOI":"10.1001\/jama.1954.73690220001007","article-title":"Familial incidence of congenital aneurysms of cerebral arteries. 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A discussion of Dr. Dandy's intracranial occlusion of the internal carotid for aneurysms of the circle of Willis, with supplementary remarks.","volume":"107","author":"Matas","year":"1938"},{"key":"b9","series-title":"Arch Neurol","doi-asserted-by":"publisher","first-page":"8","DOI":"10.1001\/archneur.1963.00460010024002","article-title":"Variation in form of circle of Willis. The relation of the variations to collateral circulation: anatomic analysis.","volume":"8","author":"Riggs","year":"1963"},{"key":"b10","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"563","DOI":"10.3171\/jns.1977.46.5.0563","article-title":"Microsurgical anatomy of the upper basilar artery and the posterior circle of Willis.","volume":"46","author":"Saeki","year":"1977"},{"key":"b11","series-title":"Acta Radiol","doi-asserted-by":"publisher","first-page":"415","DOI":"10.3109\/00016925909171114","article-title":"Infundibular widening of the posterior communicating artery studied by carotid angiography.","volume":"51","author":"Saltzman","year":"1959"},{"key":"b12","series-title":"Arch Pathol","first-page":"45","article-title":"Aneurysms and anatomical variation of cerebral arteries.","volume":"75","author":"Stehbens","year":"1963"},{"key":"b13","series-title":"J Anat Physiol","first-page":"131","article-title":"The arteries of the pons and medulla oblongata.","volume":"50","author":"Stopford","year":"1916"},{"key":"b14","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"377","DOI":"10.3171\/jns.1974.41.3.0377","article-title":"Surgical treatment of an aneurysm on the funnel-shaped bulge of the posterior communicating artery. Case report.","volume":"41","author":"Yoshimoto","year":"1974"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/60\/3\/article-p572.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/60\/3\/article-p572.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/60\/3\/article-p572.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,24]],"date-time":"2022-07-24T19:40:09Z","timestamp":1658691609000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/60\/3\/article-p572.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1984,3]]},"references-count":14,"journal-issue":{"issue":"3"},"URL":"https:\/\/doi.org\/10.3171\/jns.1984.60.3.0572","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[1984,3]]}}}