{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T04:17:34Z","timestamp":1776917854849,"version":"3.51.2"},"reference-count":11,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2007,7]]},"abstract":"<jats:p>\u2713Facial nerve schwannomas can occur anywhere from the internal auditory canal to the parotid gland. Schwannomas arising from the greater superficial petrosal nerve are exceedingly rare.<\/jats:p>\n<jats:p>The authors report the case of a 63-year-old woman who presented with a selective low-frequency hearing loss of 3 weeks' duration. Neurological examination demonstrated a House\u2013Brackmann Grade II facial paresis and asymmetrical hearing loss on the left side. Audiometric evaluation showed a significant loss of low-frequency hearing with a speech reception threshold (SRT) of 30 dB and a speech discrimination score (SDS) of 88% on the left side. Magnetic resonance imaging revealed a 2.4-cm enhancing left middle fossa mass. Near-complete resection was performed via a left temporal craniotomy. The tumor was located in the Glasscock triangle and had invaded the petrous bone overlying the cochlea. A very small piece of the tumor over the cochlea was left in order to preserve hearing. A postoperative audiogram showed significant improvement in the patient's hearing, with an SRT of 20 dB and an SDS of 100%. The histological findings were consistent with schwannoma.<\/jats:p>\n<jats:p>The patient experienced postoperative improvement of hearing function despite cochlear involvement, which has previously been reported as an unfavorable factor for postoperative hearing outcome in facial nerve schwannomas.<\/jats:p>","DOI":"10.3171\/jns-07\/07\/0181","type":"journal-article","created":{"date-parts":[[2008,1,24]],"date-time":"2008-01-24T12:54:27Z","timestamp":1201179267000},"page":"181-184","source":"Crossref","is-referenced-by-count":10,"title":["Recovery of low-frequency sensorineural hearing loss following resection of a greater superficial petrosal nerve schwannoma"],"prefix":"10.3171","volume":"107","author":[{"given":"Burak","family":"Sade","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joung H.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1-1070181","series-title":"Surg Radiol Anat","doi-asserted-by":"publisher","first-page":"82","DOI":"10.1007\/s00276-003-0196-9","article-title":"Topographic relationship between the cochlea and the middle fossa floor: the anatomical basis for an alternative approach to the cochlear turns","volume":"26","author":"Anagnostopoulou","year":"2004"},{"key":"b2-1070181","series-title":"Surg Neurol","doi-asserted-by":"publisher","first-page":"245","DOI":"10.1016\/j.surneu.2003.09.034","article-title":"Facial nerve schwannomas: different manifestations and outcomes","volume":"62","author":"Chung","year":"2004"},{"key":"b3-1070181","series-title":"Br J Neurosurg","doi-asserted-by":"publisher","first-page":"519","DOI":"10.1080\/02688699647203","article-title":"Middle cranial fossa schwannoma of the facial nerve","volume":"10","author":"Dolenc","year":"1996"},{"key":"b4-1070181","series-title":"Disorders of the Skull Base Region. Proceedings of the Tenth Nobel Symposium, Stockholm, 1968","first-page":"135","article-title":"Exposure of the intra-petrous portion of the carotid artery","author":"Glasscock","year":"1968"},{"key":"b5-1070181","series-title":"Ear Hear","doi-asserted-by":"publisher","first-page":"71","DOI":"10.1097\/00003446-199402000-00008","article-title":"Low-frequency sensorineural loss: clinical evaluation and implications for hearing aid fitting","volume":"15","author":"Halpin","year":"1994"},{"key":"b6-1070181","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"691","DOI":"10.3171\/jns.1999.91.4.0691","article-title":"Greater superficial petrosal nerve neurinoma. Case report","volume":"91","author":"Kumon","year":"1999"},{"key":"b7-1070181","series-title":"AJNR Am J Neuroradiol","first-page":"991","article-title":"Segmental enhancement of the cochlea on contrast-enhanced MR: correlation with the frequency of hearing loss and possible sign of perilymphatic fistula and autoimmune labyrinthitis","volume":"14","author":"Mark","year":"1993"},{"key":"b8-1070181","series-title":"Otolaryngol Head Neck Surg","doi-asserted-by":"publisher","first-page":"302","DOI":"10.1016\/S0194-5998(00)70260-9","article-title":"Schwannoma of the greater superficial petrosal nerve","volume":"122","author":"Michel","year":"2000"},{"key":"b9-1070181","series-title":"Acta Otolaryngol","doi-asserted-by":"publisher","first-page":"184","DOI":"10.3109\/00016487809121440","article-title":"Clinical findings and diagnostic problems in sensorineural low frequency hearing loss","volume":"85","author":"Parving","year":"1978"},{"key":"b10-1070181","series-title":"Ann Otol Rhinol Laryngol","doi-asserted-by":"publisher","first-page":"323","DOI":"10.1177\/000348949610500416","article-title":"Distance from the labyrinthine portion of the facial nerve to the basal turn of the cochlea Temporal bone histopathologic study","volume":"105","author":"Redleaf","year":"1996"},{"key":"b11-1070181","series-title":"Neurosurgery","doi-asserted-by":"publisher","first-page":"739","DOI":"10.1227\/00006123-198711000-00027","article-title":"Middle fossa facial schwannoma removed via the intracranial extradural approach: case report and review of the literature","volume":"21","author":"Rosenblum","year":"1987"}],"container-title":["Journal of Neurosurgery"],"original-title":[],"link":[{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/107\/1\/article-p181.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/107\/1\/article-p181.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/thejns.org\/downloadpdf\/journals\/j-neurosurg\/107\/1\/article-p181.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,4,13]],"date-time":"2023-04-13T01:23:42Z","timestamp":1681349022000},"score":1,"resource":{"primary":{"URL":"https:\/\/thejns.org\/view\/journals\/j-neurosurg\/107\/1\/article-p181.xml"}},"subtitle":["Case report"],"short-title":[],"issued":{"date-parts":[[2007,7]]},"references-count":11,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.3171\/jns-07\/07\/0181","relation":{},"ISSN":["0022-3085"],"issn-type":[{"value":"0022-3085","type":"print"}],"subject":[],"published":{"date-parts":[[2007,7]]}}}