1. Department of Dermatology, Faculty of Medicine, University of Chile, Santiago, Chile.
2. Department of Dermatology, Hospital Universitari Sagrat Cor, Barcelona, Spain.
3. Departments of Radiology and Dermatology, Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Clinica Servet, Faculty of Medicine, University of Chile, Santiago, Chile.
4. Department of Pathology, Dermopathology Section, Histodiagnostico Malaga, Faculty of Medicine, University of Chile, Santiago, Chile.