Mini-Symposium 2
CIS/high-grade dysplasia in the biliary tract

[MSY2-1] The impact of preoperative MDCT and endoscopic transpapillary mapping biopsy to predict longitudinal spread and depth of invasion of extrahepatic cholangiocarcinoma at possible surgical ductal margins

^○Kyoji Ito¹, Yoshihiro Sakamoto¹, Nobuhisa Akamatsu¹, Junichi Kaneko¹, Junichi Arita¹, Kiyoshi Hasegawa¹, Norihiro Kokudo² (1.Department of Surgery, Tokyo University, Tokyo, Japan, 2.National Centre for Global Health and Medicine, Tokyo, Japan)