Toshiro Iizuka
Progress in endoscopic technologies, such as magnifying endoscopy and narrow band imaging, has increased endoscopists’ ability to detect superficial Pharyngeal Squamous Cell Carcinoma (PSCC), leading to an increase in reported cases. At the same time, new Endoscopic Submucosal Dissection (ESD) techniques enabling lesions to be removed en bloc regardless of their size are now available to treat lesions not only in the stomach but also in the esophagus and colon.