Intracranial epidermoid cysts are rare congenital lesions accounting for approximately 1% of intracranial tumors. Petrous apex involvement is uncommon and surgically challenging because of the lesion's proximity to critical neurovascular structures. Reports describing minimally invasive endoscope-assisted approaches in this location remain limited....
No actionable change for routine audiology practice; this surgical case report is relevant to neurotologists and skull-base surgeons managing rare petrous bone lesions.
Minimally invasive endoscopic approaches to rare skull-base lesions near auditory structures may reduce surgical morbidity, which matters when these cases occasionally present through audiology referral pathways.
- 01An illustrative single case describes endoscopic removal of a petrous bone epidermoid cyst via a presigmoid burr hole.
- 02Petrous bone epidermoid cysts are rare congenital lesions that can affect hearing and adjacent cranial nerves.
- 03The minimally invasive approach aims to reduce surgical risk compared with open craniotomy.
- 04This is a single case report with limited generalizability.
- 05Relevant primarily to neurotology and skull-base surgery subspecialties.
Endoscopic minimally invasive resection via a presigmoid burr hole is a feasible approach for petrous bone epidermoid cysts.
studypartially supported- PMID
- 42442003
- DOI
- 10.3171/CASE26361.
- Journal
- Journal of Neurosurgery: Case Lessons
- Publication type
- case_report
- Evidence level
- 4
- Sample size
- 1
- Population
- Single patient with petrous bone epidermoid cyst
- Intervention
- Endoscopic minimally invasive resection via presigmoid burr hole approach
Primary outcomes
Successful cyst resection; Preservation of adjacent neurovascular structures; Post-operative outcomes