[P16] Poster Session 16　Hepatobiliary/Pancreatic Cancer（Gallbladder and Biliary Tract Cancer）

[P16-2] A retrospective analysis of pembrolizumab in patients with high microsatellite instability cholangiocarcinoma

^○Takehiro Shimizu¹, Atsushi Naganuma², Ayako Matsui³, Tatsuma Murakami¹, Yuuki Kanamaya¹, Dan Zennyoji¹, Takayoshi Suga¹, Hiroki Tojima¹, Yuichi Yamazaki¹, Satoru Kakizaki², Ken Sato¹, Toshio Uraoka¹ (1.Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, 2.Department of Gastroenterology, National Hospital Organization Takasaki General Medical Center, 3.Department of Internal Medicine, Isesaki Municipal Hospital)