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Lymphomatoid papulosis. A model of immunoblastic reaction of the skin.

In 3 cases of lymphomatoid papulosis with few ulceronecrotic lesions and 5 with the classic features of pytiriasis lichenoides acuta with necrotic lesions, a considerable part of the cellular component of the infiltrate of the lesions showed the morphologic and cytochemical characteristics of the cells described as immunoblasts. The authors consider that the lymphomatoid papulosis could represent an immunoblastic response to an unknown antigen.

Adolescent↗

[Hematoderma].

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Adolescent↗

[Papulois lymphomatoide].

Clinical study and bibliographic review of the lymphomatoid papulosis (Macaulay-1968) and parapsoriasis varioliformis acute (Mucha-1916). A personal case is reported after a review of nosological location of these diseases and the variable prognosis. The authors reach the following conclusions: 1st) From the clinical point of view the small number of lesions in the lymphomatoid papulosis bring about a different clinical picture from that of parapsoriasis varioliformis acuta in here usually there is a considerable number of lesions. 2nd) There are concomitant lesions of parapsoriasis gutata in parapsoriasis varioliformis and none of the type in lymphomatoid papulosis. 3rd) Protracted course in lymphomatoid papulosis and short lived eruption in the parapsoriasis varioliformis acuta. 4th) From the histological point of view denser and atypical infiltrate in cases of parapsoriasis varioliformis.

Adult↗

Viral exanthems.

Viral exanthems are mostly associated with self-limited diseases. However, in some cases diagnosis of an exanthem may be crucial to patients and their contacts. Certain exanthems have fairly characteristic morphology, but in many cases an accurate diagnosis cannot be made on the basis of morphology alone. Historical factors may be helpful when evaluating these patients, specifically their disease contacts, immunization record, previous exanthematous illnesses, and associated prodromal symptoms. Some illnesses are seasonal and this knowledge may be useful. This manuscript reviews a number of common childhood exanthems. We included the most common viral exanthems encountered by primary-care physicians and dermatologists.

Acrodermatitis↗

Dandruff.

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Dandruff↗