作者单位:Osaka City Gen Hosp, Dept Dermatol, Osaka, Japan[1]Hirosaki Univ, Grad Sch Med, Dept Dermatol, Hirosaki, Aomori, Japan[2]Osaka City Gen Hosp, Dept Pathol, Osaka, Japan[3]Osaka City Gen Hosp, Dept Plast Surg, Osaka, Japan[4]Osaka City Gen Hosp, Dept Pediat Neurosurg, Osaka, Japan[5]