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Seborrheic dermatitis is a skin condition that affects patients of varied ages. Most often occurs in children in the first three months of life in adults aged between 30 and 60 years. In adolescents and adults usually presents as scalp scaling furfuraceous (dandruff) or as mild or intense erythema fold that occur during periods of stress or insomnia of an individual.
Seborrheic dermatitis of adolescents and adults usually starts with seborrhea of the scalp, with scaling and erythema and erythema of the Nasolabial fold or the skin behind the pinna. Scaling occurs in skin areas that have an increased activity of the sebaceous glands (ears, beard, eyebrows and torso, areas under the breasts).
Seborrhoeic dermatitis sometimes occurs in the central area of the face. Lesions typical distribution is symmetrical. In some cases, there may blepharitis, abscesses, otitis external or acne and pityriasis versicolor. Seborrheic dermatitis is one of the characteristics of dandruff, characterized by the appearance of fine debris as a white powder in the scalp. Patients complain of itching scalp and dandruff because I think it occurs due to dry skin, wash her head becoming rarer, allowing further accumulation of dandruff. This accumulation leads to inflammation with increased symptoms. Besides itching, patients may accuse a burning sensation.
Ultraviolet rays A and B inhibit fungal growth, so many patients improve the dermatitis notifies the summer. Patients who have central nervous system disorders (Parkinson's disease, major paralysis, etc.) appear to be predisposed to seborrheic dermatitis, tend to develop more extensive damage and are often refractory to treatment.
There are two types of seborrheic dermatitis on the trunk, a guy called petaloid (more common) and a rarer type, like pityriasis.
Petaloid type appears as small papules, red-brown around the hair. These papules are increased until golden appearance of flower petals.
Pitiriaziform type is characterized by generalized macules resembling pityriasis rosacea extended.
In infants, seborrheic dermatitis can take the form of thick and greasy crusts on the scalp. They are not itchy in infants as in older children and adults. Scabs can be varied in color, appearing white or yellow. In children presenting large scales dry, it speaks of a ps