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Vol. 29, No. 3, 2017 367 Received April 26, 2016, Revised June 16, 2016, Accepted for publication June 18, 2016 Corresponding author: Young Min Park, Department of Dermatology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea. Tel: 82-2-2258-6223, Fax: 82-2-594-3255, E-mail: [email protected] This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/ licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright © The Korean Dermatological Association and The Korean Society for Investigative Dermatology vessels and whitish scales/diffusely distributed dotted vessels, respectively. Obviously, further studies on larger groups of patients are needed to confirm our observations.