{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,4,15]],"date-time":"2023-04-15T16:10:32Z","timestamp":1681575032186},"reference-count":17,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["PED"],"published-print":{"date-parts":[[2011,8]]},"abstract":"<jats:p>This 18-year-old woman presented with symptoms of right upper-extremity ataxia and imaging evidence of syringomyelia and an acquired Chiari malformation after a previous suboccipital decompression for cerebellar hemorrhage. The patient underwent posterior fossa reexploration to detether any adhesions and release scar tissue in the fourth ventricular outlet. Her symptoms of syringomyelia resolved but she then developed symptoms of lethargy, confusion, and amnesia in addition to ataxia. Repeat neural axis imaging revealed resolution of the syrinx but prominent brainstem hypertrophy. Eventually, the placement of a ventriculoperitoneal shunt resulted in the resolution of both symptoms and brainstem hypertrophy. In the present article, the authors elaborate on this first reported case of a reversible brainstem hypertrophy responsive to CSF shunting.<\/jats:p>","DOI":"10.3171\/2011.5.peds10380","type":"journal-article","created":{"date-parts":[[2011,8,1]],"date-time":"2011-08-01T14:59:07Z","timestamp":1312210747000},"page":"184-188","source":"Crossref","is-referenced-by-count":2,"title":["Brainstem hypertrophy, acquired Chiari malformation, syringomyelia, and hydrocephalus: diagnostic dilemma"],"prefix":"10.3171","volume":"8","author":[{"given":"Rohan","family":"Ramakrishna","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeffrey C.","family":"Mai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tanya","family":"Filardi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samuel R.","family":"Browd","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard G.","family":"Ellenbogen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1-0080184","series-title":"\u00dcber die Kretinen, eine besondere Menschenabart in den Alpen","author":"Ackermann","year":"1790"},{"key":"b2-0080184","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"237","DOI":"10.3171\/jns.1998.88.2.0237","article-title":"Acquired Chiari I malformation secondary to spontaneous spinal cerebrospinal fluid leakage and chronic intracranial hypotension syndrome in seven cases","volume":"88","author":"Atkinson","year":"1998"},{"key":"b3-0080184","series-title":"Pediatr Neurosci","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1159\/000120293","article-title":"Concerning alterations in the cerebellum resulting from cerebral hydrocephalus. 1891","volume":"13","author":"Chiari","year":"1987"},{"key":"b4-0080184","series-title":"Denkschr Akad Wiss Wien","first-page":"71","article-title":"\u00dcber Ver\u00e4nderungen des Kleinhirns, des Pons und der Medulla oblongata infolge von kongenitaler Hydrocephalie des Grosshirns","volume":"63","author":"Chiari","year":"1896"},{"key":"b5-0080184","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"568","DOI":"10.3171\/jns.1993.78.4.0568","article-title":"Tonsillar herniation: the rule rather than the exception after lumboperitoneal shunting in the pediatric population","volume":"78","author":"Chumas","year":"1993"},{"key":"b6-0080184","series-title":"Progress in Neurological Surgery.","doi-asserted-by":"publisher","first-page":"102","DOI":"10.1159\/000391817","article-title":"Malformations in structures of the posterior fossa","volume":"4","author":"Driesen","year":"1971"},{"key":"b7-0080184","series-title":"Acta Neurochir (Wien)","doi-asserted-by":"publisher","first-page":"149","DOI":"10.1007\/s00701-007-1470-0","article-title":"Hypertrophic olivary degeneration after surgical removal of cavernous malformations of the brain stem: report of four cases and review of the literature","volume":"150","author":"Hornyak","year":"2008"},{"key":"b8-0080184","series-title":"Acta Neurochir (Wien)","doi-asserted-by":"publisher","first-page":"417","DOI":"10.1007\/s007010050119","article-title":"The acquired Chiari malformation and syringomyelia following spinal CSF drainage: a study of incidence and management","volume":"140","author":"Johnston","year":"1998"},{"key":"b9-0080184","series-title":"Folia Psychiatr Neurol Jpn","first-page":"543","article-title":"Olivary hypertrophy in a case with palatal myoclonus: light- and electron-microscopic study","volume":"39","author":"Kurachi","year":"1985"},{"key":"b10-0080184","series-title":"Neurosurgery","doi-asserted-by":"publisher","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":"Longatti","year":"2009"},{"key":"b11-0080184","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"556","DOI":"10.3171\/jns.1995.83.3.0556","article-title":"Acquired Chiari I malformation and syringomyelia associated with bilateral chronic subdural hematoma. 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