JOURNAL OF SHANDONG UNIVERSITY (OTOLARYNGOLOGY AND OPHTHALMOLOGY) ›› 2015, Vol. 29 ›› Issue (4): 38-41.doi: 10.6040/j.issn.1673-3770.0.2015.094

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Transoral endoscopic dissection of parapharyngeal space.

ZHANG Baoying1,2, LU Yongtian1, LI Jianxing3   

  1. 1. Department of Otolaryngology, Shenzhen Second People's Hospital, Shenzhen 518035, Guangdong, China;
    2. Graduate School of Guangzhou Medical University, Guangzhou 510450, Guangdong, China;
    3. Department of Otolaryngology, Central Hospital of Longhua New District, Shenzhen 518110, Guangdong, China
  • Received:2015-02-16 Revised:2015-04-10 Online:2015-08-16 Published:2015-08-16

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Abstract: Objective To investigate the transoral anatomic characteristics of parapharyngeal space. Methods A total of 5 fresh cadaver heads (including 1 injected cadaver head) were dissected to illustrate the transoral approach of parapharyngeal space anatomy. Results The superior constrictor muscle was the landmark to enter the prestyloid space. The stylopharyngeus and styloglossus muscles were critical marks which divided the parapharyngeal space into 2 parts. Posterior to these muscles and laterally to the superior constrictor muscle, the internal carotid artery, internal jugular vein, and lower cranial nerves were identifiable. Conclusion Our dissection emphasizes the role of the stylopharyngeus and styloglossus muscles. The lateral surface of the superior constrictor muscle is essential to protect the internal carotid artery.

Key words: Anatomy, Parapharyngeal space, Internal carotid artery, Transoral endoscopic approach

CLC Number: 

  • R766.9
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