{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,25]],"date-time":"2026-08-25T16:36:15Z","timestamp":1787675775271,"version":"build-2784847793"},"reference-count":18,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["PED"],"published-print":{"date-parts":[[2013,7]]},"abstract":"<jats:p>Arachnoid cysts are common, accounting for approximately 1% of intracranial mass lesions. Most are congenital, clinically silent, and remain static in size. Occasionally, they increase in size and produce symptoms due to mass effect or obstruction. The mechanism of enlargement of arachnoid cysts is controversial. One-way slit valves are often hypothesized as the mechanism for enlargement. The authors present 4 cases of suprasellar prepontine arachnoid cysts in which a slit valve was identified. The patients presented with hydrocephalus due to enlargement of the cyst. The valve was located in the arachnoid wall of the cyst directly over the basilar artery. The authors believe this slit valve was responsible for the net influx of CSF into the cyst and for its enlargement. They also present 1 case of an arachnoid cyst in the middle cranial fossa that had a small circular opening but lacked a slit valve. This cyst did not enlarge but surgery was required because of rupture and the development of a subdural hygroma. One-way slit valves exist and are a possible mechanism of enlargement of suprasellar prepontine arachnoid cysts. The valve was located directly over the basilar artery in each of these cases. Caudad-to-cephalad CSF flow during the cardiac cycle increased the opening of the valve, whereas cephalad-to-caudad CSF flow during the remainder of the cardiac cycle pushed the slit opening against the basilar artery and decreased the size of the opening. Arachnoid cysts that communicate CSF via circular, nonslit valves are probably more likely to remain stable.<\/jats:p>","DOI":"10.3171\/2013.4.peds12609","type":"journal-article","created":{"date-parts":[[2013,5,10]],"date-time":"2013-05-10T14:09:22Z","timestamp":1368194962000},"page":"62-66","source":"Crossref","is-referenced-by-count":63,"title":["Arachnoid cyst slit valves: the mechanism for arachnoid cyst enlargement"],"prefix":"10.3171","volume":"12","author":[{"given":"Sameer H.","family":"Halani","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mina G.","family":"Safain","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carl B.","family":"Heilman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1-peds12609","series-title":"Curr Med Imaging Rev","doi-asserted-by":"publisher","first-page":"117","DOI":"10.2174\/157340506775541622","article-title":"From cerebrospinal fluid pulsation to noninvasive intracranial compliance and pressure measured by MRI flow studies","volume":"2","author":"Alperin","year":"2006"},{"key":"b2-peds12609","series-title":"Acta Neurochir (Wien)","doi-asserted-by":"publisher","first-page":"68","DOI":"10.1007\/BF01541784","article-title":"Endoscopic treatment of suprasellar arachnoid cysts","volume":"119","author":"Caemaert","year":"1992"},{"key":"b3-peds12609","series-title":"Rev Neurol (Paris)","first-page":"489","article-title":"[Arachnoid cysts: histologic, embryologic and physiopathologic review.]","volume":"154","author":"Catala","year":"1998"},{"key":"b4-peds12609","series-title":"Clin Neurol Neurosurg","doi-asserted-by":"publisher","first-page":"837","DOI":"10.1016\/j.clineuro.2007.07.013","article-title":"Intracranial arachnoid cysts: current concepts and treatment alternatives","volume":"109","author":"Cincu","year":"2007"},{"key":"b5-peds12609","series-title":"Stereotact Funct Neurosurg","doi-asserted-by":"publisher","first-page":"62","DOI":"10.1159\/000029672","article-title":"Treatment of symptomatic intracranial arachnoid cysts by stereotactic cyst-ventricular shunting","volume":"72","author":"D'Angelo","year":"1999"},{"key":"b6-peds12609","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"803","DOI":"10.3171\/jns.1984.60.4.0803","article-title":"Arachnoid cysts of the sylvian fissure. Evidence of fluid secretion","volume":"60","author":"Go","year":"1984"},{"key":"b7-peds12609","series-title":"Pediatr Neurol","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1016\/S0887-8994(01)00329-0","article-title":"Intracranial arachnoid cysts in children: a review of pathogenesis, clinical features, and management","volume":"26","author":"Gosalakkal","year":"2002"},{"key":"b8-peds12609","series-title":"Childs Nerv Syst","first-page":"92","article-title":"Arachnoid cysts: a critical review of 41 cases","volume":"4","author":"Hanieh","year":"1988"},{"key":"b9-peds12609","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"597","DOI":"10.3171\/jns.1982.57.5.0597","article-title":"Investigation and management of suprasellar arachnoid cysts","volume":"57","author":"Hoffman","year":"1982"},{"key":"b10-peds12609","series-title":"Childs Nerv Syst","first-page":"99","article-title":"Spontaneous disappearance of a suprasellar arachnoid cyst: case report and review of the literature","volume":"23","author":"Moon","year":"2007"},{"key":"b11-peds12609","series-title":"J Neuropathol Exp Neurol","doi-asserted-by":"publisher","first-page":"61","DOI":"10.1097\/00005072-198101000-00007","article-title":"Ultrastructure and pathogenesis of intracranial arachnoid cysts","volume":"40","author":"Rengachary","year":"1981"},{"key":"b12-peds12609","series-title":"Brain","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1093\/brain\/87.1.87","article-title":"The temporal lobe agenesis syndrome","volume":"87","author":"Robinson","year":"1964"},{"key":"b13-peds12609","series-title":"Minim Invasive Neurosurg","doi-asserted-by":"publisher","first-page":"133","DOI":"10.1055\/s-2008-1053473","article-title":"The natural history of arachnoid cysts: endoscopic and cine-mode MRI evidence of a slitvalve mechanism","volume":"38","author":"Santamarta","year":"1995"},{"key":"b14-peds12609","series-title":"J Neuropathol Exp Neurol","doi-asserted-by":"publisher","first-page":"434","DOI":"10.1097\/00005072-197907000-00008","article-title":"Fine structure of arachnoid cysts","volume":"38","author":"Schachenmayr","year":"1979"},{"key":"b15-peds12609","series-title":"Neurosurgery","first-page":"198","article-title":"Endoscopic observation of a slitvalve mechanism in a suprasellar prepontine arachnoid cyst: case report","volume":"40","author":"Schroeder","year":"1997"},{"key":"b16-peds12609","series-title":"J Neuropathol Exp Neurol","doi-asserted-by":"publisher","first-page":"484","DOI":"10.1097\/00005072-195807000-00009","article-title":"Cerebral arachnoid cysts","volume":"17","author":"Starkman","year":"1958"},{"key":"b17-peds12609","series-title":"J Neurol Neurosurg Psychiatry","doi-asserted-by":"publisher","first-page":"1085","DOI":"10.1136\/jnnp.37.10.1085","article-title":"Why do central arachnoid pouches expand?","volume":"37","author":"Williams","year":"1974"},{"key":"b18-peds12609","series-title":"Childs Nerv Syst","doi-asserted-by":"publisher","first-page":"40","DOI":"10.1007\/BF00274033","article-title":"Spontaneous disappearance of middle fossa arachnoid cyst after head injury","volume":"2","author":"Yamanouchi","year":"1986"}],"container-title":["Journal of Neurosurgery: Pediatrics"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-pediatr\/12\/1\/article-p62.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-pediatr\/12\/1\/article-p62.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg-pediatr\/12\/1\/article-p62.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,15]],"date-time":"2023-04-15T12:43:50Z","timestamp":1681562630000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg-pediatr\/12\/1\/article-p62.xml"}},"subtitle":["Report of 5 cases"],"short-title":[],"issued":{"date-parts":[[2013,7]]},"references-count":18,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.3171\/2013.4.peds12609","relation":{},"ISSN":["1933-0707","1933-0715"],"issn-type":[{"value":"1933-0707","type":"print"},{"value":"1933-0715","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,7]]}}}