Dermatoscopy: What is your diagnosis?

Philipp Tschandl, M.D.1

1Department of Dermatology, Medical University of Vienna, Vienna, Austria

Citation: Tschandl P. Dermatoscopy: What is your diagnosis?. Dermatol Pract Conc. 2012;2(2):11.

Copyright: ©2012 Tschandl. 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: Philipp Tschandl, M.D., Department of Dermatology, Division of General Dermatology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria. Tel. +43.1.40400.7700. Email:


A 61-year-old patient with chronic myelomonocytic leukemia presented with a red-to-brown maculopapular rash on the back (Figure 1). Some of the papular lesions seemed to be different from the other lesions (Figures 2, 3) and had a particular dermatoscopic appearance (Figure 4). What is your diagnosis?

Figure 1. Clinical presentation of the patient. A widespread erythematous maculopapular rash on the back of the patient. [Copyright: ©2012 Tschandl.]

Figure 2. Clinical image of a papular lesion. [Copyright: ©2012 Tschandl.]

Figure 3. Close-up of the lesion in Figure 2. [Copyright: ©2012 Tschandl.]

Figure 4. Dermatoscopic image of the lesion in Figures 2 & 3. [Copyright: ©2012 Tschandl.]

Please send your answer to The first correct answer will receive a complimentary copy of the book, Dermatoscopy. An Algorithmic Method Based on Pattern Analysis [Facultas Verlag, 2011].

The case and the answer to the question will be presented in the next issue of Dermatology Practical and Conceptual.