The characteristics of narrow band imaging endoscopy in diagnosis of hypopharyngeal and laryngeal cancer and following - up post treatment

This paper aimed to explore the characteristics of narrow band imaging (NBI) endoscopy in diagnosis of hypopharyngeal and laryngeal cancer and following – up post treatment. A total of 75 patients included 36 patients with hypopharyngeal cancer and 39 patients with laryngeal cancer who had diagnosed at Department of Otolaryngology – Hue Central Hospital from 5/2017 to 7/2018. A descriptive study was conducted.