caa a22 4500 606183590 CHVBK 20210128100822.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s00405-014-3251-8 doi (NATIONALLICENCE)springer-10.1007/s00405-014-3251-8 How often parapharyngeal space is encountered in TORS oropharynx cancer resection [Elektronische Daten] [Cuneyt Kucur, Kasim Durmus, Theodoros Teknos, Enver Ozer] Early stage oropharyngeal squamous cell carcinoma (OPSCC) may occasionally invade parapharyngeal space (PPS). Tumor invasion of PPS structures such as the carotid artery, internal jugular vein and cranial nerves IX-XII may add significant morbidity. We analyzed 73 patients who underwent transoral robotic surgery (TORS) for OPSCC between 2008 and 2012. Patients were selected based on preoperative evaluation including detailed physical and endoscopic examination, neck CT and/or PET-CT scan. T1, T2 and selected T3 cases were included in this study. None of the patients had obvious PPS extension on preoperative evaluation. All patients had OPSCC in palatine tonsil (60; 82.2%) and base of tongue (13; 17.8%). Twenty-seven patients had cT1 (37%), 39 had cT2 (53.4%), and 7 had cT3 (9.6%) disease in clinical and radiologic evaluation. None of the oropharyngeal lesions had obvious radiologic PPS extension prior to operation. During TORS procedure, we encountered PPS in 18 (24.6%) patients while resecting the deep margin. These parapharynx resections involved external carotid artery in 1, medial pterygoid muscle in 2, and parapharyngeal fat with or without styloid musculature in the remaining 15 patients. Except three cases, we were able to remove the lesions en bloc with negative surgical margins. TORS resection of oropharyngeal cancer extending to PPS appears to be a safe and feasible technique with minimal complications. Significant experience with TORS and further understanding of the endoscopic anatomy of PPS could obviate the morbidity associated with tumor resection in this dense neurovascular region. Springer-Verlag Berlin Heidelberg, 2014 Oropharyngeal carcinoma nationallicence Da Vinci robot nationallicence Transoral robotic surgery nationallicence Parapharyngeal space nationallicence Kucur Cuneyt Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut Durmus Kasim Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut Teknos Theodoros Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut Ozer Enver Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/9(2015-09-01), 2521-2526 0937-4477 272:9<2521 2015 272 405 https://doi.org/10.1007/s00405-014-3251-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00405-014-3251-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kucur Cuneyt Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut NATIONALLICENCE 700 1- Durmus Kasim Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut NATIONALLICENCE 700 1- Teknos Theodoros Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut NATIONALLICENCE 700 1- Ozer Enver Department of Otolaryngology-Head and Neck Surgery, Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, 320W 10th Ave. B216 Starling Loving Hall, 43210, Columbus, OH, USA aut NATIONALLICENCE 773 0- European Archives of Oto-Rhino-Laryngology Springer Berlin Heidelberg 272/9(2015-09-01), 2521-2526 0937-4477 272:9<2521 2015 272 405