Seborrheic eczema is localized on the skin of the scalp, as well
as the face, chest, interscapular region. Vesiculation and oozing are extremely
rare in these patients. The presence of seborrhoids (rounded yellowish-pinkish
erythematous spots covered with greasy yellowish scales) is characteristic.
Abundant layered yellowish crusts and scales appear on the scalp, the hair on
the affected areas is shiny, sometimes glued together in the form of tufts (
tinea amiantacea ). Serous -purulent exudation is often observed in the folds
behind the auricles . Patients complain of itching (sometimes very intense),
which may precede the development of clinical manifestations. Increased
sensitivity to polyamide and flannel fabrics, contact with which causes a
relapse of the disease.
Currently, there is no single point of view on seborrheic eczema. Even LN
Mashkilleyson (1965) emphasized that some authors identify seborrheic eczema
and superficial streptoderma . However, we believe that the term “seborrheic
eczema” objectively reflects the essence of the pathological process and
its morphology.
As for the microbial infection, in such patients it can play the role of an
antigen. There is no doubt that the violation of the state of the
neuroendocrine system and the reactivity of the body is of pathogenetic
importance in this Dermatosis. So, for example, infants suffer from seborrheic
eczema. At the same time, it almost never occurs between infancy and puberty,
but occurs, like seborrhea, more often after puberty (the role of
hyperandrogenism or hypoestrogenism ).