title: Endoscopic Endonasal Infrapetrous Transpterygoid Approach to the Petroclival Junction for Petrous Apex Chondrosarcoma: Technical Report.
abstract: Chondrosarcomas of the skull base are rare tumors that present difficult management considerations due to the pathoanatomical relationships of the tumor to adjacent structures. We present the case of a 25-year-old female patient presenting with a chondrosarcoma of the right petrous apex extending inferiorly, medial to the cranial nerves. The tumor was resected via an endoscopic endonasal infrapetrous transpterygoid approach that achieved complete resection and an excellent long-term outcome with no complications. Technical nuances and potential pitfalls of the case are discussed in depth including measures to protect the carotid artery while performing the required drilling of the skull base to access the lesion.
authors.affiliation: Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Adrian J
authors.initials: AJ
authors.lastname: Maurer
authors.affiliation: Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Phillip A
authors.initials: PA
authors.lastname: Bonney
authors.affiliation: Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Courtney R
authors.initials: CR
authors.lastname: Iser
authors.affiliation: Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Rohaid
authors.initials: R
authors.lastname: Ali
authors.affiliation: Department of Otorhinolaryngology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States ; Oklahoma Comprehensive Brain Tumor Clinic, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Jose A
authors.initials: JA
authors.lastname: Sanclement
authors.affiliation: Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States ; Oklahoma Comprehensive Brain Tumor Clinic, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Sughrue
keywords: chondrosarcoma; endoscopic endonasal; minimally invasive; petroclival; skull base