{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,19]],"date-time":"2026-08-19T18:03:12Z","timestamp":1787162592482,"version":"build-2736575974"},"reference-count":31,"publisher":"Georg Thieme Verlag KG","issue":"04","license":[{"start":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T00:00:00Z","timestamp":1760313600000},"content-version":"vor","delay-in-days":12,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Neurol Surg Rep"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Tetraventricular hydrocephalus happens due to the fourth ventricle outlet obstruction. Idiopathic fourth ventricle outlet obstruction (IFVOO) is a condition where no clear-cut etiology for fourth ventricle outlet obstruction can be found. The etiopathogenesis of IFVOO is unclear. There is no clear-cut consensus regarding the treatment practices for its management. These cases present a diagnostic dilemma to the treating neurosurgeon and are thus often managed inappropriately. This study aims to review the existing literature regarding this condition, illustrating with a case from our hospital.<\/jats:p>\n                  <jats:p>We present a case of a 50-year-old female who presented to us with the chief complaints of headache, difficulty in walking, with an inability to balance while standing and walking, diplopia, and three episodes of loss of consciousness for 6 months. A brain MRI was done, which was suggestive of dilatation of all ventricles with obstruction at the foramina of Luschka and Magendie. She underwent a right-sided, medium-pressure ventriculoperitoneal shunt at our hospital. Postsurgery, there was immediate improvement in her symptoms.<\/jats:p>\n                  <jats:p>IFVOO is a rare cause of tetraventricular hydrocephalus with an unknown cause. Endoscopic third ventriculostomy (ETV) appears to have a higher risk of failure in such cases. Fenestration procedures after craniotomy and shunt procedures are still effective in their management. ETV is still an alternative to the above-mentioned procedures. To confirm these conclusions, larger studies involving multiple hospitals and institutes are required.<\/jats:p>","DOI":"10.1055\/a-2713-5787","type":"journal-article","created":{"date-parts":[[2025,10,13]],"date-time":"2025-10-13T23:17:55Z","timestamp":1760397475000},"page":"e206-e213","source":"Crossref","is-referenced-by-count":1,"title":["Tetraventricular Hydrocephalus Due to Idiopathic Fourth Ventricle Outlet Obstruction: A Case Report and Literature Review"],"prefix":"10.1055","volume":"86","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-3869-2038","authenticated-orcid":false,"given":"Guramritpal","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Shree Ram Neuro Centre, Jalandhar, Punjab, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2025,10,13]]},"reference":[{"issue":"05","key":"ref1","doi-asserted-by":"crossref","first-page":"905","DOI":"10.1227\/01.NEU.0000333262.38548.E1","article-title":"Efficacy of endoscopic third ventriculostomy in fourth ventricular outlet obstruction","volume":"63","author":"A Mohanty","year":"2008","journal-title":"Neurosurgery"},{"issue":"01","key":"ref2","doi-asserted-by":"crossref","first-page":"84","DOI":"10.3171\/jns.1948.5.1.0084","article-title":"Congenital atresia of the foramina of Luschka and Magendie with report of two cases of surgical cure","volume":"5","author":"C C Coleman","year":"1948","journal-title":"J Neurosurg"},{"issue":"11","key":"ref3","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1007\/s00381-002-0639-3","article-title":"Diverticular enlargement of the foramina of Luschka and congenital hydrocephalus","volume":"18","author":"T Inamura","year":"2002","journal-title":"Childs Nerv Syst"},{"issue":"06","key":"ref4","doi-asserted-by":"crossref","first-page":"1078","DOI":"10.1227\/01.NEU.0000360133.29217.44","article-title":"Primary obstruction of the fourth ventricle outlets: Neuroendoscopic approach and anatomic description","volume":"65","author":"P Longatti","year":"2009","journal-title":"Neurosurgery"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1093\/brain\/71.3.281","article-title":"Observations on the foramen of Magendie in a series of human brains","volume":"71","author":"M L Barr","year":"1948","journal-title":"Brain"},{"issue":"04","key":"ref6","doi-asserted-by":"crossref","first-page":"426","DOI":"10.1227\/NEU.0000000000000283","article-title":"Endoscopic transventricular transaqueductal Magendie and Luschka foraminoplasty for hydrocephalus","volume":"74","author":"J Torres-Corzo","year":"2014","journal-title":"Neurosurgery"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"e425","DOI":"10.1016\/j.wneu.2021.01.008","article-title":"Hydrocephalus caused by primary fourth ventricle outlet obstruction: Our experience and literature review","volume":"148","author":"O Krej\u010d\u00ed","year":"2021","journal-title":"World Neurosurg"},{"issue":"02","key":"ref8","doi-asserted-by":"crossref","first-page":"204","DOI":"10.3171\/2009.9.PEDS09304","article-title":"Intraoperative assessment of cerebral aqueduct patency and cisternal scarring: impact on success of endoscopic third ventriculostomy in 403 African children","volume":"5","author":"B C Warf","year":"2010","journal-title":"J Neurosurg Pediatr"},{"issue":"03","key":"ref9","doi-asserted-by":"crossref","first-page":"519","DOI":"10.3171\/jns.2002.97.3.0519","article-title":"Endoscopic third ventriculostomy in patients with cerebrospinal fluid infection and\/or hemorrhage","volume":"97","author":"V Siomin","year":"2002","journal-title":"J Neurosurg"},{"issue":"05","key":"ref10","doi-asserted-by":"crossref","first-page":"517","DOI":"10.1007\/s007010170083","article-title":"Obstruction of Magendie's and Luschka's foramina. 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