Takayuki Suyama1, Megumi Yokoyama2, Yuichi Teraki2, Seiichi Izaki2. 1. Department of Dermatology, Saitama Medical University Saitama Medical Center, Saitama, Japan. suyama11@saitama-med.ac.jp. 2. Department of Dermatology, Saitama Medical University Saitama Medical Center, Saitama, Japan.