Severe cytokine release syndrome resulting in purpura fulminans despite successful response to nivolumab therapy in a patient with pleomorphic carcinoma of the lung: a case report =================================================================================================================================================================================== * Osamu Honjo * Terufumi Kubo * Fumiko Sugaya * Takahiro Nishizaka * Koji Kato * Yoshihiko Hirohashi * Hiroki Takahashi * Toshihiko Torigoe