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[Seborrhoeic dermatitis: clinical manifestations and management].

Seborrhoeic dermatitis is a frequent chronic inflammatory dermatosis characterized by erythematous patches surmounted by fatty and yellowish scales, affecting particularly the scalp, the naso-labial folds and the eyebrows. Its etio-pathogeny is still not clear, but Malassezia type yeast appear to play a very important role in its development. Several conditions can be associated with high prevalency of seborrhoeic dermatitis (HIV, Parkinson's disease, Down's Syndrome). No curative treatment is available yet, but nevertheless the symptomatology can be controlled, mainly with topical treatments, and particularly antifungals. This article will develop first clinical and pathological aspects of the disease, then propose therapeutic recommendations based on evidences from the literature.