文档介绍：Letter to the Editor 262 Ann Dermatol Received December 11, 2014, Revised April 4, 2015, Accepted for publication May 7, 2015 Corresponding author: Wei-Guo Sun, Department of Dermatology, Huai’an First People’s Hospital, Nanjing Medical University, 6 Beijing West Road, Huai yin District, Huai’an 223300, China. Tel: 86-**********, Fax: 86-0517-84922412, E-mail: sls1242@ This is an Open Access article distributed under the terms of the mons Attribution mercial License (http://cr / licenses/by-nc/) which permits unrestricted mercial use, distribution, and reproduction in any medium, provided the o riginal work is properly cited. Copyright ? The Korean Dermatological Association and The Korean Society for Investigative Dermatology http://dx./. A Case of Adult Generalized Cutaneous Langerhans Cell Histiocytosis Wei-Guo Sun, Lian-Sheng Zhong 1, Hao Chen 2 Department of Dermatology, Huai’an First People’s Hospital, Nanjing Medical University, Huai’an, 1Department of Dermatology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, 2Department of Pathology, Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, China Dear Editor: Langerhans cell histiocytosis (LCH) is a rare disease and generally affects infants and children. Adult-onset form and generalized cutaneous lesions at presentation withou