Response to imatinib in vaginal melanoma with KIT p.Val559Gly mutation previously treated with nivolumab, pembrolizumab and ipilimumab. Issue 6 (7th January 2019) - Komatsu‐Fujii, Takayoshi; Nomura, Motoo; Otsuka, Atsushi; Ishida, Yoshihiro; Doi, Keitaro; Matsumoto, Shigemi; Muto, Manabu; Kabashima, Kenji