[O070] バレット食道癌1

[O070-1] Possibility of photodynamic diagnosis for extension of Barrett's cancer under the squamous ephithelium

^○Naoyuki Yamaguchi^1,2, Hajime Isomoto^1,2, Kayoko Matsushima², Hitomi Minami², Yuko Akazawa², Hitoshi Nishiyama², Ken Onita², Fuminao Takeshima², Saburo Shikuwa², Kazuhiko Nakao^1,2 (1.Dept. of Endoscopy,Nagasaki University Hospital,Nagasaki,Japan, 2.Department of Gastroenterology and Hepatology, Nagasaki University Hospital,Nagasaki,Japan)