Endoscopic resection combined with gel immersion and curved laryngoscope for superficial hypopharyngeal cancer.

Transoral surgery using gastrointestinal endoscopy for superficial lesions near the pharyngoesophageal junction is an effective treatment [1] [2]. Gel immersion endoscopic mucosal resection has been reported to be a promising treatment for superficial lesions of the digestive tract [3] [4] [5].