{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,21]],"date-time":"2026-01-21T03:48:20Z","timestamp":1768967300773,"version":"3.49.0"},"reference-count":7,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2019,2,12]]},"published-print":{"date-parts":[[2019,3]]},"abstract":"<jats:p>Post-traumatic pneumolabyrinth is an uncommon clinical entity, particularly in the absence of temporal bone fracture. We report the case of a patient who presented to our emergency department with a headache, sudden left hearing loss and severe dizziness which began after a traumatic brain injury 3 days earlier. On examination, the patient presented signs of left vestibulopathy, left sensorineural hearing loss and positive fistula test, normal otoscopy and without focal neurological signs. The audiometry confirmed profound left sensorineural hearing loss. Cranial CT revealed a right occipital bone fracture and left frontal subdural haematoma, without signs of temporal bone fracture. Temporal bone high-resolution CT scan revealed left pneumolabyrinth affecting the vestibule and cochlea. Exploratory tympanotomy revealed perilymphatic fistula at the location of the round window. The sealing of defect was performed using lobule fat and fibrin glue. He presented complete resolution of the vestibular complaints, though the hearing thresholds remained stable.<\/jats:p>","DOI":"10.1136\/bcr-2018-228457","type":"journal-article","created":{"date-parts":[[2019,3,2]],"date-time":"2019-03-02T05:35:19Z","timestamp":1551504919000},"page":"e228457","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":7,"title":["Perilymphatic fistula and pneumolabyrinth without temporal bone fracture: a rare entity"],"prefix":"10.1136","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5099-3811","authenticated-orcid":false,"given":"Ana","family":"Sousa Menezes","sequence":"first","affiliation":[{"name":"Otorhinolaryngology - Head & Neck Surgery, Hospital de Braga, Braga, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniela","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Otorhinolaryngology - Head & Neck Surgery, Hospital de Braga, Braga, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel Alves","family":"Miranda","sequence":"additional","affiliation":[{"name":"Otorhinolaryngology - Head & Neck Surgery, Hospital de Braga, Braga, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sara","family":"Martins Pereira","sequence":"additional","affiliation":[{"name":"Otorhinolaryngology - Head & Neck Surgery, Hospital de Braga, Braga, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2019,3,1]]},"reference":[{"key":"2025082802263532000_12.3.e228457.1","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.1097\/MAO.0b013e31815a9f2b","article-title":"Assessment of changes in cochlear function with pneumolabyrinth after middle ear trauma","volume":"28","author":"Lao","year":"2007","journal-title":"Otol Neurotol"},{"key":"2025082802263532000_12.3.e228457.2","doi-asserted-by":"publisher","DOI":"10.1097\/MLG.0b013e318172ab03"},{"key":"2025082802263532000_12.3.e228457.3","doi-asserted-by":"crossref","first-page":"456","DOI":"10.1177\/014556130007900611","article-title":"A case of barotrauma-induced pneumolabyrinth secondary to perilymphatic fistula","volume":"79","author":"McGhee","year":"2000","journal-title":"Ear Nose Throat J"},{"key":"2025082802263532000_12.3.e228457.4","doi-asserted-by":"crossref","first-page":"1048","DOI":"10.1097\/MAO.0000000000000662","article-title":"The Rates and Clinical Characteristics of Pneumolabyrinth in Temporal Bone Fracture","volume":"36","author":"Choi","year":"2015","journal-title":"Otol Neurotol"},{"key":"2025082802263532000_12.3.e228457.5","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.1995.01890070081017"},{"key":"2025082802263532000_12.3.e228457.6","first-page":"313","article-title":"Pneumolabyrinth in perilymphatic fistula: report of three cases","volume":"8","author":"Yanagihara","year":"1987","journal-title":"Am J Otol"},{"key":"2025082802263532000_12.3.e228457.7","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/j.ijporl.2005.05.016","article-title":"Pneumolabyrinth following traumatic luxation of the stapes into the vestibule","volume":"70","author":"Sarac","year":"2006","journal-title":"Int J Pediatr Otorhinolaryngol"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2018-228457","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T09:26:45Z","timestamp":1756373205000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2018-228457"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3]]},"references-count":7,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2019,3,1]]},"published-print":{"date-parts":[[2019,3]]}},"alternative-id":["10.1136\/bcr-2018-228457"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2018-228457","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3]]}}}