1 Department of Dermatology, Hospital Padre Hurtado, Santiago, Chile.
2 Department of Dermatology, Hospital Padre Hurtado, Santiago, Chile; Department of Dermatology, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile.
3 Department of Dermatology, Hospital Padre Hurtado, Santiago, Chile; Department of Dermatology, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile. Electronic address: casilvah@udd.cl.
4 Department of Pathology, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile.