Dermatology: Practical and Conceptual DERMATOLOGY PRACTICAL & CONCEPTUAL www.derm101.com Quiz | Dermatol Pract Concept 2013;3(3):7 23 The patient A healthy 2-year-old girl presented with a rash on her shoul- der of 6 months’ duration. Physical examination revealed a solitary 5 mm erythematous dome-shaped papule sur- rounded by numerous smaller similar lesions (Figure 1). Dermatoscopy visualized numerous central white and skin- colored clods with vessels arranged radially to the clods (Fig- ure 2). What is your diagnosis? Please send your answer to dpc@derm101.com. The first correct answer will receive a complimentary copy of the book, Dermoscopy: The Essentials, 2nd ed. [Elsevier-Saun- ders 2012]. The case and the answer to the question will be presented in the next issue of Dermatology Practical and Conceptual. Answer to the April 2013 quiz The correct answer to the dermatoscopy quiz in the April 2013 issue (http://dx.doi.org/10.5826/dpc.0302a12) is psoriasis. Congratulations to Dr. John Stretch, who was the first to send us the correct answer! Dermoscopy: What is your diagnosis? Barry Ladizinski1, Marigdalia K. Ramirez-Forte2, David J. Elpern3 1 Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA 2 Center for Clinical Studies, Houston, Texas, USA 3 The Skin Clinic, Williamstown, Massachusetts, USA Citation: Ladizinski B, Ramirez-Forte MK, Elpern DJ. Dermoscopy: What is your diagnosis? Dermatol Pract Conc. 2013;3(3):7. http:// dx.doi.org/10.5826/dpc.0303a07. Copyright: ©2013 Ladizinski et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Corresponding author: David J. Elpern, M.D., The Skin Clinic, 12 Meadow St, Williamstown, MA 01267, USA. Email: djelpern@gmail. com. Figure 1. A solitary 5 mm erythematous dome-shaped papule on the right shoulder of a 2-year-old girl. [Copyright: ©2013 Ladizinski et al.] Figure 2. Dermoscopy showed numerous central white and skin- colored clods with vessels arranged radially to the clods. [Copyright: ©2013 Ladizinski et al.] mailto:dpc@derm101.com http://dx.doi.org/10.5826/dpc.0302a12