Mixed adenoneuroendocrine carcinoma with loss of HER2 positivity after trastuzumab-based chemotherapy for HER2-positive gastric cancer: a case report

by Hiromi Nagata, Hironori Tsujimoto, Yoshihisa Yaguchi, Keita Kouzu, Yujiro Itazaki, Yusuke Ishibashi, Satoshi Tsuchiya, Takao Sugihara, Nozomi Ito, Manabu Harada, Shinsuke Nomura, Yoshitaka Utsumi, Hideyuki Shimazaki, Yoji Kishi, Hideki Ueno
Published 2020-01-01