Endonasal endoscopic approach to the pterygopalatine and infratemporal fossae |
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| Affiliation: | 1. Centre Hospitalier Universitaire de Saint-Étienne et Université Jean Monnet, Saint-Étienne, France;2. Department of Otolaryngology-Head & Neck Surgery, University of Cincinnati College of Medicine; Brain Tumor Center at University of Cincinnati Gardner Neuroscience Institute; Mayfield Clinic, Cincinnati, OH, USA;3. Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA;4. Department of Neurosurgery, University of Cincinnati College of Medicine; Brain Tumor Center at University of Cincinnati Gardner Neuroscience Institute, Cincinnati, OH, USA;5. Centre Hospitalier Universitaire de Saint-Étienne, Université Jean Monnet et Laboratoire d’Anatomie de la Faculté de Médecine Jacques Lisfranc, Saint-Étienne, France |
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| Abstract: | ![]()
The pterygopalatine fossa and infratemporal fossa are spaces located under the skull base, housing important neurovascular structures. Surgical access to these spaces is challenging because of their deep location and complex anatomy. Their surgical access has been classically carried out through multiple craniofacial approaches until the advent of endoscopic endonasal surgery at the end of the XXth century. Our goal is to describe the transmaxillary-transsphenoidal-transpterygoid approach to the pterygopalatine and infratemporal fossae through endonasal endoscopic surgery based on anatomo-surgical dissection and an illustrative clinical case. We conclude that after careful radiologic evaluation of the feasibility of this technique, the endonasal endoscopic access to these spaces for tumor resection is efficient with reduced surgical morbidities. The endonasal approach is versatile and can be fashioned according to the nature and extent of the lesion. |
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| Keywords: | Pterygopalatine fossa Infratemporal fossa Transmaxillary-transsphenoidal-transpterygoid approach Endonasal endoscopic surgery |
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