[GS-036] A case of polypoid endometriosis developing in the retroperitoneum ○Shoko Tamada, Yuki Sakai, Karen Iwama, Naoko Tanaka, Yoshiaki Tsukizawa, Rinko Kubo, Keiji Morikawa, Yosuke Katayama, Maiko Ueda, Madoka Sekino, Masae Yorimitsu, Junichi Kodama (Department of Obstetrics and Gynecology, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan) Abstract password authentication.Password is required to view the abstract. Please enter a password to authenticate. Password Authentication