抄録
Endoscopic surgery is useful in Otorhinolaryngology and particularly epoch-making apparatus for improving sinus surgery has been developed since the 1980s. Recently, endoscopic surgery has been used for minimally invasive middle ear surgery, laryngeal surgery and skull base surgery. NBI (Narrow Band Imaging) has been used for operating in the early stages of pharyngeal malignancy. Neuroendoscopic Surgery.