{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T22:03:19Z","timestamp":1788386599177,"version":"build-2803163510"},"reference-count":27,"publisher":"Media Sphere Publishing House","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Burdenko's Journal of Neurosurgery"],"published-print":{"date-parts":[[2026,2,11]]},"abstract":"<jats:p>Background. Posterior petrous meningiomas (PPM) are located anterior and posterior to internal auditory meatus. Their relationships with cerebellopontine angle are variable, and they present with various symptoms. Objective. To create a classification of PPMs depending on location in relation to internal auditory meatus, and to compare clinical symptoms, anatomical relationships and postoperative outcomes for different groups of PPM. Material and methods. A retrospective study included 112 patients undergoing surgery for PPM (97 women and 15 men aged 25\u201480 years). There were 61 left-sided and 51 right-sided tumors (mean size 32.4 mm, range 10\u201466 mm). Results. PPMs were divided into retromeatal (R) in 44 cases, antemeatal (A) in 62 cases and anteretromeatal (AR) in 6 cases. PPM size in the R group was 34 mm (15\u201466 mm), in the A group \u2014 30 mm (10\u201464 mm), in the AR group \u2014 49 mm (38\u201465 mm). Total resection was performed in 84 patients (36, 47 and 1 in three groups, respectively). Anatomical integrity of cranial nerves was preserved in most patients. Postoperative deterioration of cranial nerve dysfunction was noted in 24 patients in groups A and AR. Conclusion. Antemeatal meningiomas more often present with cranial nerve dysfunction, retromeatal meningiomas \u2014 with cerebellar symptoms. Retromastoid approach enables total\/subtotal resection of PPM, and postoperative cranial nerve dysfunction is more common in antemeatal meningiomas. Preservation of anatomical and functional integrity of neurovascular structures is important for favorable postoperative outcomes.<\/jats:p>","DOI":"10.17116\/neiro20269001129","type":"journal-article","created":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T08:12:07Z","timestamp":1770797527000},"page":"29","source":"Crossref","is-referenced-by-count":1,"title":["Posterior petrous meningiomas: clinical manifestations, anatomical relationships and postoperative outcomes"],"prefix":"10.17116","volume":"90","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5745-8061","authenticated-orcid":false,"given":"G.Yu.","family":"Grigoryan","sequence":"first","affiliation":[{"name":"Treatment and Rehabilitation Center","place":["Moscow, Russia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8924-7346","authenticated-orcid":false,"given":"D.Yu.","family":"Usachev","sequence":"additional","affiliation":[{"name":"Burdenko Neurosurgical Center","place":["Moscow, Russia"]},{"name":"Russian Medical Academy of Continuous Professional Education","place":["Moscow, Russia"]},{"name":"Botkin Hospital","place":["Moscow, Russia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9811-9442","authenticated-orcid":false,"given":"D.A.","family":"Kulichkov","sequence":"additional","affiliation":[{"name":"Treatment and Rehabilitation Center","place":["Moscow, Russia"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3157-6187","authenticated-orcid":false,"given":"Yu.A.","family":"Grigoryan","sequence":"additional","affiliation":[{"name":"Treatment and Rehabilitation Center","place":["Moscow, Russia"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"6743","reference":[{"key":"key-10.17116\/neiro20269001129-1","unstructured":"Desgeorges M, Sterkers O. 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