Hemophagocytic syndrome associated with pembrolizumab therapy successfully controlled by cyclosporin. Issue 12 (29th August 2020) - Sakai, Yuzuki; Nakamura, Kenta; Midorikawa, Hirotaka; Osawa, Kana; Shirai, Takushi; Sano, Tasuku; Kiniwa, Yukiko; Nakazawa, Hideyuki; Okuyama, Ryuhei