Dermatology - diseases of the skin

Pityriasis rosea Gibert


Pityriasis rosea Gibert

Pityriasis rosea (the pityriasis rosea disease Gibert, flaky roseola) is an acute dermatosis with a distinctive flow, the nature and location of the rash, prone to spontaneous healing. Usually occurs after suffering from colds. The peculiarity of this disease is that with treatment, and without it, 6-8 weeks before it is resolved. The subjective sensations in most cases are missing, sometimes there is itching (and emotional people when exposed to skin irritants). This disease is characterized by seasonality (the highest number of cases occurred in spring and autumn). Pityriasis rosea occurs mainly in people 20-40 years, cases of the disease in children under 10 years of age and older people are very rare. Of relapses (repeat diseases) are generally not marked. It leaves quite a strong immunity.

Causes of pink lichen Gibert

Pathogen pink lichen is exactly is not known. It is believed that pityriasis rosea is caused by a herpes virus 7 type. The most widespread opinion that the causative agent was a virus. The disease often appears after suffering respiratory infections.

Symptoms of pink lichen Gibert

The existence of everything begins with “mother spot” is the spot of large size, pinkish-yellowish, with desquamation. After exfoliation of the scales remains narrow “collar” surrounding the Central brownish-yellow of the spots. In suburbia remains a pinkish color. Compare similar items with medallions. This is pathognomonic (i.e., very characteristic for this disease) trait. After 7-14 days, the number of sunspots increases, they are smaller, pinkish or pinkish-yellow color, of so-called “kids”.

Symptoms and causes of pink lichen GibertIn some patients – up to 25% severe itching occurs, about half of patients – easy, a quarter of patients itching is absent. Approximately 80% of patients have maternal plaque in the form of a bright, oval shaped spots with a diameter of from 2 to 5 cm. In rare cases, rashes multiple primary lesions located in different parts of the body. In the Central part of the spot is peeling of the skin, and the scales form around the plaque a distinctive collar.

On the periphery of the spot marked pink bezel without peeling.Secondary scaly rashes in the form of oval spots of red or dark pink color oval shape, in most cases located on the Langer lines and resemble the branches of a Christmas tree (Christmas tree).Most commonly, the spots are marked in the trunk and proximal extremities.On the face and neck rashes occur in very rare cases.

Recovery occurs independently in 6 to 12 weeks.In very rare cases, the disease may last longer – up to several months and years. Relapse is extremely rare.
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Atypical forms pink lichen

By atypical forms include forms with absence of the primary maternal plaques, with lesions on the face and neck and irritated the so-called pityriasis rosea – the pityriasis rosea irritata,caused by friction, pressure, sweating, the wrong treatment and is characterized by severe itching and mišenevidnye spots, multiform-like erythema. In very rare cases, possible eruptions in the form of vesicles,hemorrhages and pustules.

What disease is similar pityriasis rosea

Pityriasis rosea should be distinguished from secondary syphilis, drug of toxicoderma, parapsoriasis, guttate psoriasis, chronic erythema migrans (Lyme disease), fungal infections smooth skin, erythema multiform.

Diagnosis of pink lichen

The diagnosis is based on characteristic symptoms. In cases of disease duration more than 12 weeks recommended a skin biopsy to exclude parapsoriasis. In terms of differential diagnosis are assigned serology for syphilis, scrapings from the lesions on the mycelium of the fungus, examination wood’s light.
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Treatment of pink lichen Gibert

Special treatment pink lichen does not exist. The disease usually goes away on its own. During the early secondary rashes are not recommended friction and pressure elements to avoid the appearance of irritated forms pink lichen. The view that the shower and bath contributes to the development of the disease and the appearance of irritated forms is not justified – just during the reception of water procedures it is necessary to avoid strong friction with a washcloth or sponge.

For severe itching appointed antihistamines, topical – nizkozolnye corticosteroids (hydrocortisone) and prescription antipruritic mixture.
There are studies showing that taking in the first days of the disease high doses of erythromycin, acyclovir and ultraviolet irradiation leads to more rapid and uncomplicated course of disease.

Treatment of pink lichen GibertHypoallergenic diet;

Antihistamines (to relieve itching);

Outer: aqueous agitated slurry (Tindol); possible use of corticosteroid ointments

to Restrict the cosmetic products applied on the body;

do Not use wool and synthetic underwear.

 

Complications from pink lichen

With the active water treatment procedures and observed the massive spread of the rash. In a weakened immune system strong itching and the accession of infection, but this is rare.

Prevention of pink lichen

Prevention is not needed. Of relapses (repeat diseases) are generally not marked. It leaves quite a strong immunity.