{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,8]],"date-time":"2025-04-08T13:13:25Z","timestamp":1744118005418,"version":"3.37.3"},"reference-count":17,"publisher":"Georg Thieme Verlag KG","issue":"04","license":[{"start":{"date-parts":[[2022,10,28]],"date-time":"2022-10-28T00:00:00Z","timestamp":1666915200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Asian J Neurosurg"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Intracranial arachnoid cyst is the most common cystic congenital anomaly in the brain. In this study, we discuss a pregnancy that had serial fetal ultrasound scans throughout the pregnancy and a fetal anomaly scan at 24 weeks of gestation that was normal. The child was born healthy with normal development, but 12 months onward the head began to enlarge. The magnetic resonance imaging of the brain showed a large posterior fossa arachnoid cyst with hydrocephalus. We discuss the postulation to explain this pathogenesis of the cyst. This case highlights that not all symptomatic arachnoid cysts are congenital despite the manifestation being as early as infancy.<\/jats:p>","DOI":"10.1055\/s-0042-1757223","type":"journal-article","created":{"date-parts":[[2022,10,29]],"date-time":"2022-10-29T00:16:34Z","timestamp":1667002594000},"page":"676-679","source":"Crossref","is-referenced-by-count":1,"title":["Postnatal Posterior Fossa Arachnoid Cyst: A Developmental Etiology to Be Considered"],"prefix":"10.1055","volume":"17","author":[{"given":"Thiynesvaran","family":"Ramachandran","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery, Department of Surgery, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vijayan","family":"Valayatham","sequence":"additional","affiliation":[{"name":"Fetal Medicine Unit, Aseana O&G Specialist Clinic, Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1595-3659","authenticated-orcid":false,"given":"Dharmendra","family":"Ganesan","sequence":"additional","affiliation":[{"name":"Division of Neurosurgery, Department of Surgery, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2022,10,28]]},"reference":[{"issue":"06","key":"ref1","doi-asserted-by":"crossref","first-page":"578","DOI":"10.3171\/2010.2.PEDS09464","article-title":"Prevalence and natural history of arachnoid cysts in children","volume":"5","author":"W N Al-Holou","year":"2010","journal-title":"J Neurosurg Pediatr"},{"issue":"01","key":"ref2","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1055\/s-0039-1686959","article-title":"Arachnoid cyst\u2014institutional experience","volume":"8","author":"M Singaravelu","year":"2019","journal-title":"Indian J Neurosurg"},{"issue":"04","key":"ref3","doi-asserted-by":"crossref","first-page":"434","DOI":"10.1097\/00005072-197907000-00008","article-title":"Fine structure of arachnoid cysts","volume":"38","author":"W Schachenmayr","year":"1979","journal-title":"J Neuropathol Exp Neurol"},{"issue":"03","key":"ref5","doi-asserted-by":"crossref","first-page":"484","DOI":"10.1097\/00005072-195807000-00009","article-title":"Cerebral arachnoid cysts","volume":"17","author":"S P Starkman","year":"1958","journal-title":"J Neuropathol Exp Neurol"},{"issue":"02","key":"ref6","doi-asserted-by":"crossref","first-page":"222","DOI":"10.3171\/2012.10.JNS12548","article-title":"Prevalence and natural history of arachnoid cysts in adults","volume":"118","author":"W N Al-Holou","year":"2013","journal-title":"J Neurosurg"},{"issue":"03","key":"ref7","doi-asserted-by":"crossref","first-page":"199","DOI":"10.1159\/000345636","article-title":"De novo suprasellar arachnoid cyst: case report and review of the literature","volume":"48","author":"D Invergo","year":"2012","journal-title":"Pediatr Neurosurg"},{"issue":"05","key":"ref8","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1159\/000028733","article-title":"Pathogenesis of arachnoid cyst: congenital or traumatic?","volume":"29","author":"J U Choi","year":"1998","journal-title":"Pediatr Neurosurg"},{"issue":"05","key":"ref9","doi-asserted-by":"publisher","first-page":"301","DOI":"10.1159\/000120129","article-title":"Middle fossa arachnoid cyst: clinical, neuroradiological, and surgical features","volume":"10","author":"T Shimoji","year":"1983","journal-title":"Child's brain"},{"issue":"04","key":"ref10","doi-asserted-by":"publisher","first-page":"211","DOI":"10.1007\/BF00706815","article-title":"Postnatal development and enlargement of primary middle cranial fossa arachnoid cyst recognized on repeat CT scans","volume":"2","author":"M Kumagai","year":"1986","journal-title":"Child's nervous system: ChNS: official journal of the International Society for Pediatric Neurosurgery"},{"issue":"05","key":"ref11","doi-asserted-by":"publisher","first-page":"281","DOI":"10.1007\/BF00300797","article-title":"Arachnoid cysts in children: a European co-operative study","volume":"8","author":"RW Oberbauer","year":"1992","journal-title":"Child's nervous system: ChNS: official journal of the International Society for Pediatric Neurosurgery"},{"key":"ref12","doi-asserted-by":"publisher","first-page":"426","DOI":"10.3171\/PED.2006.104.6.426","article-title":"Spontaneous development of a de novo suprasellar arachnoid cyst. 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