Lichen simplex chronicus resulting from repeated itch-scratch cycles Lichen simplex chronicus resulting from repeated itch-scratch cycles. Note the hypertrophic leathery, lichenified plaques. The exaggerated skin lines are characteristic. (Used, with permission, from S Goldstein.) Source: Dermatologic Disorders, Current Medical Diagnosis & Treatment 2018 Citation: Papadakis MA, McPhee SJ, Rabow MW. Current Medical Diagnosis & Treatment 2018; 2017 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/2192/cmdt18_ch6_ef018-1.png&sec=168007102&BookID=2192&ChapterSecID=168006971&imagename= Accessed: October 20, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved