Yi Fang1, Haitao Wu1, Weidong Zhao1, Lei Cheng2. 1. Department of Otorhinolaryngology-Head and Neck Surgery (Shanghai Key Clinical Disciplines of Otorhinolaryngology), Eye, Ear, Nose and Throat Hospital, Fudan University, Fenyang Road Num83, Xuhui District, Shanghai, 200031, China. 2. Department of Otorhinolaryngology-Head and Neck Surgery (Shanghai Key Clinical Disciplines of Otorhinolaryngology), Eye, Ear, Nose and Throat Hospital, Fudan University, Fenyang Road Num83, Xuhui District, Shanghai, 200031, China. tomorrowhot@163.com.
Abstract
AIMS: To investigate the anatomy of the infratemporal fossa (ITF) and to discuss the practicality of endoscopic transvestibular surgery for an ITF tumor. METHODS: Five fresh cadaveric specimens (10 sides) with vascular silicone injection were prepared for endoscopic anatomy. A transvestibular vertical incision was made along the ramus of the mandible, and pivotal nerves, arteries, and muscles were exposed to sculpt the anatomic landmarks of the ITF. RESULTS: The endoscopic transvestibular approach exposed the detailed structure of the ITF. The buccinator muscle and the adjoining superior pharyngeal constrictor muscle shaped the paramedian border of the ITF, while the medial pterygoid muscle (MPM) and the lateral pterygoid muscle formed the lateral border. The ITF was delimited by the skull base in the upper margin, and it was proximal to the parapharyngeal space in the inferior part. The inferior alveolar nerve was the first reference point, and the maxillary artery and the lateral pterygoid muscle were also the landmarks of the ITF. The lingual nerve, the eustachian tube (ET), and the middle meningeal artery were also located in the posterior part of the ITF. CONCLUSION: The endoscopic transvestibular approach provides a feasible and facile corridor to the ITF. With accurate hemostasis, this approach may provide another option for accessing the ITF for removal of tumors.
AIMS: To investigate the anatomy of the infratemporal fossa (ITF) and to discuss the practicality of endoscopic transvestibular surgery for an ITF tumor. METHODS: Five fresh cadaveric specimens (10 sides) with vascular silicone injection were prepared for endoscopic anatomy. A transvestibular vertical incision was made along the ramus of the mandible, and pivotal nerves, arteries, and muscles were exposed to sculpt the anatomic landmarks of the ITF. RESULTS: The endoscopic transvestibular approach exposed the detailed structure of the ITF. The buccinator muscle and the adjoining superior pharyngeal constrictor muscle shaped the paramedian border of the ITF, while the medial pterygoid muscle (MPM) and the lateral pterygoid muscle formed the lateral border. The ITF was delimited by the skull base in the upper margin, and it was proximal to the parapharyngeal space in the inferior part. The inferior alveolar nerve was the first reference point, and the maxillary artery and the lateral pterygoid muscle were also the landmarks of the ITF. The lingual nerve, the eustachian tube (ET), and the middle meningeal artery were also located in the posterior part of the ITF. CONCLUSION: The endoscopic transvestibular approach provides a feasible and facile corridor to the ITF. With accurate hemostasis, this approach may provide another option for accessing the ITF for removal of tumors.
Entities:
Keywords:
Anatomy; Infratemporal fossa; Regional; Surgical oncology; Video-assisted surgery
Authors: Paolo Battaglia; Mario Turri-Zanoni; Iacopo Dallan; Stefania Gallo; Eleonora Sica; Giovanni Padoan; Paolo Castelnuovo Journal: Otolaryngol Head Neck Surg Date: 2014-01-23 Impact factor: 3.497
Authors: Abraam Yacoub; Daniel Schneider; Ahmed Ali; Wilhelm Wimmer; Marco Caversaccio; Lukas Anschuetz Journal: J Neurol Surg B Skull Base Date: 2019-11-06