1. Department of Radiology, Faculty of Medicine, University of São Paulo, São Paulo, Brazil;
2. Private Practice in Dermatology, São Paulo, Brazil;
3. Department of Dermatology, Faculty of Medicine, Universidad de Chile, Santiago, Chile;
4. Department of Dermatology, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile;
5. Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Santiago, Chile