Anais Brasileiros de Dermatologia is the official publication of the Brazilian Society of Dermatology (SBD - Sociedade Brasileira de Dermatologia). The journal is published bimonthly and is devoted to the dissemination of original, unpublished technical-scientific study, resulting from research or reviews of dermatological topics and related matters. Exchanges with other publications may be accepted. The opinions and statements contained in the journal are the sole and exclusive responsibility of their authors, and do not necessarily coincide with those of the Editorial Staff, the Advisory Board or the Brazilian Society of Dermatology. The Editorial Staff of the Anais Brasileiros de Dermatologia and the Brazilian Society of Dermatology do not guarantee or endorse the advertised products or services - the advertisements are the sole and exclusive responsibility of the advertisers - nor any promises related to the service or product announced in the journal.