During endoscopic examinations of the laryngopharyngeal region, insertion of the scope induces the gag reflex, and examinations have tended to be inadequate because of the desire to minimize patient discomfort. The laryngopharyngeal region is of course under the aegis of the ear, nose, and throat (ENT) specialty, but even in the ENT field, early detection of cancers in this region has been considered extremely difficult. Detection of superficial esophageal cancers is also far from easy, requiring considerable experience.
KeywordsCricoid Cartilage Piriform Sinus Flexible Spectral Imaging Color Enhancement Circumvallate Papilla Superficial Esophageal Cancer
- 1.Japan Society for Head and Neck Cancer (eds). General Rules for Clinical Studies on Head and Neck Cancer (4th edition), Kanehara Shuppan, 2005.Google Scholar
- 4.Inoue H, et al: Stomach and Intestine 41:19–205, 2006Google Scholar
- 5.Arima H, et al: Gastroenterol Endosc 39:1557–1565, 1997Google Scholar
- 7.Arima M, et al: Stomach and Intestine 44: 1675–1687, 2009Google Scholar