Endoscopic Transsphenoidal Drainage of Petrous Apex Mucocele.

Approaching the petrous apex can be complex and fraught with danger. Identifying favorable pathology and gaining access endoscopically is a direct, fast, and minimally invasive. Supported by navigation, it can be safely used in the vicinity of vital structures. A mucocele requires creation of a wide drainage pathway and can be an ideal lesion for such an approach.