{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T19:17:56Z","timestamp":1790709476271,"version":"4.1.0"},"reference-count":10,"publisher":"S. Karger AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,1]],"date-time":"2023-01-01T00:00:00Z","timestamp":1672531200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2023,1,1]],"date-time":"2023-01-01T00:00:00Z","timestamp":1672531200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ORL"],"published-print":{"date-parts":[[2023]]},"abstract":"<jats:p>Cholesterol granuloma of the petrous bone is a foreign body giant cell reaction to cholesterol deposits with symptoms including hearing loss, vestibular dysfunction, and cranial nerve deficit as a result of cystic mass compression. Surgical treatment is often difficult to plan due to limited access to the lesion and possible injury to surrounding structures. We report on a case of petrous apex cholesterol granuloma drainage through an infracochlear approach. A 27-year-old female patient presented with acute diplopia due to left-sided abducens paralysis. Multislice computed tomography (MSCT) and magnetic resonance (MR) imaging described a 3.5-cm well-marginated lesion in petrous bone apex, compressing the left abducens nerve at the point of entry into the cavernous sinus, corresponding to cholesterol granuloma. The patients was surgically treated through a transcanal infracochlear approach, since preserving the external and middle ear conduction mechanisms was paramount for the patient. The patient was discharged on the second postoperative day and diplopia resolved within 5 days postoperatively. Six months after the surgery, her hearing on the left side is normal, and she remains symptom-free. This case underpins the value of preoperative planning when approaching the petrous apex, an anatomically complex area due to abundance of important neurovascular structures crowded in a narrow and confined region. <\/jats:p>","DOI":"10.1159\/000530054","type":"journal-article","created":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T21:00:39Z","timestamp":1680728439000},"page":"172-176","source":"Crossref","is-referenced-by-count":2,"title":["Surgical Considerations in Addressing Cholesterol Granuloma of the Petrous Apex through an Infracochlear Approach"],"prefix":"10.1159","volume":"85","author":[{"given":"Andro","family":"Ko\u0161ec","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Josip","family":"Prnjak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Tomljenovi\u0107","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9543-8130","authenticated-orcid":false,"given":"Mihael","family":"Ries","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2023,4,5]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-015-3705-7"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1097\/00129492-200207000-00023"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1097\/00129492-200301000-00020"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0b013e31825d63ea"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1177\/019459989110400107"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-021-06635-6"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.anorl.2018.06.002"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000001578"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1002\/lary.22448"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1097\/MAO.0000000000001422"}],"container-title":["ORL"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/karger.com\/orl\/article-pdf\/85\/3\/172\/3966668\/000530054.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/orl\/article-pdf\/85\/3\/172\/3966668\/000530054.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T15:19:50Z","timestamp":1745421590000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000530054"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023]]},"references-count":10,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2023,6,1]]},"published-print":{"date-parts":[[2023,6,6]]}},"URL":"https:\/\/doi.org\/10.1159\/000530054","archive":["Portico"],"relation":{},"ISSN":["0301-1569","1423-0275"],"issn-type":[{"value":"0301-1569","type":"print"},{"value":"1423-0275","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023]]}}}