Introduction:

seborrhoeic dermatitis is a chronic inflammatory skin disease characterized by the presence of erythema and peeling of the skin in the affected areas. It results from the combination of three factors: sebaceous secretion, presence of Malassezia and the immune response; distinguishing two main forms: the infantile and the adult.

Case report:

a 3-month-old twin infant, born by dystocic caesarean delivery at 39 weeks. His parents brought him to the dermatology clinic; they reported a 15-day chart of evolution of scalp lesions and diaper erythematous area. The mother stated the patient receives complementary feeding and the twin brother has the same clinical picture, but in less extent. Infantile seborrhoeic dermatitis, milky crust pattern with seborrhoeic dermatitis pattern of the folds were examined and diagnosed. Hygienic education was provided to parents and local treatment is indicated to both patients based on frequent washing of the scalp, hair lotion (2% salicylic acid + 100 ml mineral oil), steroid and antifungal creams, achieving obvious clinical improvement.

Conclusions:

this entity is a frequent dermatosis in infants, with a clinical characteristic pattern which study is necessary, particularly for Primary Health Care Physicians, to ensure adequate treatment avoiding complications.

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