[P45] 大腸　腫瘍1

[P-220] An example of a sessile serrated adenoma / polyp (SSA/P) that was recognized inverted growth in multiple locations.

^○Takayoshi Shimizu, Yasunori Oono, Kensuke Shinmura, Kentaro Yoshimi, Tomoji Kato, Shozo Osera, Hiroyuki Morimoto, Yusuke Yoda, Tomoyuki Odagaki, Hiroaki Ikematsu, Tomonori Yano, KAZUHIRO KANEKO (Dept. of Gastroenterology & Gastrointestinal Oncology National Cancer Center Hospital East Chiba, Japan)