John J Dávila1, Karla Aguilar2, Franklin Cabrera2, Asiclo Boadas3. 1. Department of Dermatology, Central University of Ecuador, Quito, Ecuador. 2. Department of Dermatology, Carlos Andrade Marín Hospital, Quito, Ecuador. 3. Department of Pathology, Carlos Andrade Marín Hospital, Quito, Ecuador.