Intraosseous Schwannoma of the Petrous Apex
| Title: | Intraosseous Schwannoma of the Petrous Apex |
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| Authors: | Ryota Tamura, Satoshi Takahashi, Maya Kohno, Kaori Kameyama, Hirokazu Fujiwara, Kazunari Yoshida |
| Source: | Journal of Neurological Surgery Reports, Vol 76, Iss 01, Pp e135-e139 (2015) |
| Publisher Information: | Georg Thieme Verlag KG, 2015. |
| Publication Year: | 2015 |
| Collection: | LCC:Surgery LCC:Neurology. Diseases of the nervous system |
| Subject Terms: | schwannoma, intraosseous, petrous apex, neurinoma, Surgery, RD1-811, Neurology. Diseases of the nervous system, RC346-429 |
| More Details: | Abstract Background and Importance Intraosseous schwannoma is a relatively rare clinical entity that typically arises in vertebral and mandibular bone. Intraosseous schwannoma located entirely within the petrous bone is exceedingly rare, and only two cases have been reported to date. Clinical Presentation A 47-year-old Asian man was referred to our hospital with a chief complaint of double vision. Neurologic examination revealed left abducens nerve palsy. Radiologic imaging showed a 35-mm osteolytic expansive lesion located in the left petrous apex. We made a preoperative diagnosis of chondrosarcoma and performed surgical resection. Surgery was performed via a left subtemporal epidural approach with anterior petrosectomy. The histopathologic diagnosis of the tumor was schwannoma. Schwannoma arising from cranial nerves was excluded from intraoperative findings in conjunction with the results for cranial nerves, and intraosseous schwannoma was diagnosed. Postoperative course was uneventful, and abducens nerve palsy resolved immediately after surgery. Conclusion The differential diagnosis of intraosseous schwannoma should be considered for an osteolytic mass lesion within the petrous apex. Subcapsular tumor removal was considered ideal in terms of preservation of the cranial nerves and vessels around the tumor. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2193-6358 2193-6366 |
| Relation: | https://doaj.org/toc/2193-6358; https://doaj.org/toc/2193-6366 |
| DOI: | 10.1055/s-0035-1549312 |
| Access URL: | https://doaj.org/article/f8395617fddd4216821bfc1c8676ca16 |
| Accession Number: | edsdoj.f8395617fddd4216821bfc1c8676ca16 |
| Database: | Directory of Open Access Journals |
| ISSN: | 21936358 21936366 |
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| DOI: | 10.1055/s-0035-1549312 |
| Published in: | Journal of Neurological Surgery Reports |
| Language: | English |