Fig. 4
From: Clinical outcomes of transoral videolaryngoscopic surgery for hypopharyngeal and supraglottic cancer
A case in which TOVS was performed for a tumor on the posterior wall. a CT image under Valsalva maneuver showing a T2 tumor on the posterior wall of the hypopharynx. b Transnasal endoscopic view of the tumor under Valsalva maneuver. c Endoscopic view of the tumor just before resection. d Endoscopic view of the wound just after resection. e Section of the tumor specimen stained with hematoxylin and eosin. f Macroscopic view of the tumor specimen resected. g Transnasal endoscopic view of the wound just after thorough hemostasis. Inferior pharyngeal constrictor muscle was widely exposed