Affordable Access

deepdyve-link
Publisher Website

Endoscopy-assisted transoral resection of a parapharyngeal space schwannoma without mandibular dissection.

Authors
  • Yamamoto, Keisuke1
  • Kurose, Makoto2
  • Yadomura, Risa3
  • Yajima, Ryoto4
  • Okuni, Tsuyoshi5
  • Takano, Kenichi6
  • 1 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
  • 2 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
  • 3 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
  • 4 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
  • 5 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
  • 6 Department of Otorhinolaryngology, Sapporo Medical University School of Medicine, Minami 1-jo Nishi 16-chome, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan. Electronic address: [email protected] , (Japan)
Type
Published Article
Journal
Auris, nasus, larynx
Publication Date
Jun 01, 2021
Volume
48
Issue
3
Pages
539–544
Identifiers
DOI: 10.1016/j.anl.2020.04.012
PMID: 32507528
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Of the schwannomas that arise from the parapharyngeal space, those in the high cervical region are particularly invasive, requiring mandibular dissection. Because these tumors are benign, however, excessive surgical invasion and postoperative neurological complications should be avoided. Postoperative dropout symptoms may be avoided by intracapsular extraction, including nerve integrity monitoring (NIM) and narrow-band imaging (NBI). Video laryngoscopy surgery is reported to be useful for transoral resection of pharyngeal and laryngeal tumors. This report describes the transoral removal of a giant schwannoma located in the high cervical region from a 74-years-old man using a surgical support device without mandibular dissection. The tumor was located on the right lateral pharyngeal wall and extended from the upper oropharynx to the hypopharynx while compressing the epiglottis to the skull base. No separation was observed between the internal jugular vein and the internal carotid artery. The tumor was diagnosed as a schwannoma with no malignancy on the basis of the histology of a core needle biopsy (CNB), and was completely and safely removed endoscopically using NIM and NBI, with no need for an external incision or mandibular dissection. This case illustrates that even a huge sympathetic schwannoma located in the parapharyngeal space at a high cervical position can be excised transorally using video-laryngoscopic surgery (TOVS) without mandibular dissection. Copyright © 2020. Published by Elsevier B.V.

Report this publication

Statistics

Seen <100 times