Clinical Pathologic Challenge AnswerBilateral and Symmetrical Linear Plaques on the Hands: AnswerWu, Zhouwei MD, PhD*,†; Xu, Mingyuan BS*; Chen, Zhuo MD‡; Shi, Weimin MD, PhD†; Liu, Yeqiang MD, PhD*Author Information *Department of Dermatology, Shanghai Skin Disease Hospital, Shanghai, China; †Department of Dermatology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai, China; and ‡Department of Dermatology, Shanghai Changhai Hospital Affiliated to Second Military Medical University, Shanghai, China. Reprints: Yeqiang Liu, MD, PhD, Department of Dermatology, Shanghai Skin Disease Hospital, No. 1278 Baode Road, Shanghai 200050, China (e-mail: email@example.com). National Natural Science Foundation of China (Grant nos. 81402587 and 81360236); Shanghai Health Development Center Foundation (Grant no. 12014217). The authors declare no conflicts of interest. The American Journal of Dermatopathology: February 2018 - Volume 40 - Issue 2 - p 151 doi: 10.1097/DAD.0000000000000732 Buy Metrics Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.