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Updated: Jan 25, 2026
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Modifying the Bank Erosion Hazard Index BEHI Protocol for Rapid Assessment of Streambank Erosion in Northeastern Ohio
Published on: February 13, 2015
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Primary Petrous Apex Epidermoids With Skull Base Erosion
Geoffrey C Casazza1, Hilary C McCrary, Clough Shelton
1Division of Otolaryngology - Head and Neck Surgery, University of Utah, Salt Lake City, Utah.
Summary
Surgical management of petrous apex epidermoid tumors effectively preserves facial nerve function and prevents recurrence. Different surgical approaches yield variable outcomes in treating these rare skull base lesions.
Area of Science:
- Neurosurgery
- Skull Base Surgery
- Otolaryngology
Background:
- Petrous apex epidermoids are rare congenital tumors.
- These tumors can cause significant neurological deficits due to skull base erosion.
Purpose of the Study:
- To describe the clinical course and treatment outcomes for patients with petrous apex epidermoid tumors.
- To evaluate the effectiveness of surgical management in preserving facial nerve function and preventing recurrence.
Main Methods:
- Retrospective case series of seven patients surgically managed for petrous apex epidermoids.
- Review of presenting symptoms, imaging, pre- and postoperative clinical course, and complications.
Main Results:
- Common symptoms include sudden sensorineural hearing loss, vertigo, and facial paralysis.
- Surgical intervention preserved hearing in three patients and facial function in most.
- Two patients experienced disease recurrence within 4 and 7 years.
Conclusions:
- Surgical management is effective for aggressive petrous apex epidermoids.
- Facial nerve function preservation and recurrence prevention are key outcomes.
- Variable outcomes highlight the need for tailored surgical approaches.
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