Pityriasis versicolor or kleienflechte

pityriasis versicolor

Pityriasis versicolor (Kleienpilzchte) is a superficial fungal disease of the skin. It is particularly noticeable by blotchy skin changes on the skin Back and chest (sweat groove) noticeable. It is a Yeast fungus, which belongs to the natural skin flora. Here you will find everything you need to know about pityriasis versicolor.

What is pityriasis versicolor?

How does the disease manifest itself? What are the symptoms?

What are the causes or promoting factors?

How is the disease diagnosed?

What is the therapy?

What is pityriasis versicolor?

Pityriasis versicolor, also Kleienpilzflechte called a harmless fungal disease of the skin and affects only the upper layers of the skin. As triggers of pityriasis versicolor are certain yeast fungi of the genus Malassezia known. They belong to the natural skin flora (microbiome) and, in humans, settle in the hair follicles and on neighboring parts of the body (head).

The disease develops when the yeast fungi suddenly multiply unchecked and there is to the equilibrium disturbance comes. They then also colonize parts of the body outside the hair follicle. The skin spots of the Kleienpilzflechte occur mainly on sebaceous gland-rich skin areas of the body trunk on. But also other places like shoulders, arms and neck can be affected and itch easily.

Pityriasis versicolor is not contagious – even when in direct contact with diseased persons, because every person carries the Malassezia fungi already on the skin.

How the disease manifests itself? What are the symptoms?

The disease can be recognized mainly by the light and dark spots (hypo- and hyperpigmentation). These can occur in the form of many small patches, but in the case of extensive infestation can also become larger areas flow together.

Formed by strong proliferation Malassezia fungi dense fungal colonies. At first, small, round, sharply defined spots appear. The color of the spots ranges from light to dark brown. Often one can see light spots on dark skin. On light skin dark spots. This explains the term "versicolor" (multicolored), which develops as follows:

The fungal layer does not allow UV rays to penetrate to the underlying skin, whereby the formation of the skin pigment melanin fails there. In addition the fungus produces bleaching agents, which are the Further inhibit melanin synthesis in the skin. Thus light spots appear on dark or tanned skin (hypopigmentation). Frequently, these are seen by patients with the skin disease Vitiligo (white spot disease) mixed up. Even after treatment of the fungus, the light spots remain visible – until the fish is exposed to the sun again.

On light skin, on the other hand, the whitening is not seen and the fungus makes its way through Formation of own pigments in form of reddish-brownish skin lesions noticeable.

On the affected areas you can see often fine small skin scales. Hence the name of the Disease "Lesser apple moth. The infection is sometimes accompanied by mild itching.

What are the causes or favoring factors?

Causes of the Pityriasis versicolor are certain yeast fungi, especially those of the Malassezia species (z.B. globosa or furfur). These fungi occur in all healthy people and together with other microorganisms the normal skin microbiome. Due to various factors, they can suddenly multiply excessively, disturbing the balance of the natural skin flora.

Risk factors for the occurrence of pityriasis versicolor:

-warm and humid environment -heavy sweating -increased sebum production of the skin -incorrect skin care / too much sun protection -stress -familial strain / genetics

To observe an accumulation of the Expression of the disease in the summer months.

How is the disease diagnosed?

The dermatologist is the right contact person. To avoid other diseases like z.B. Vitiligo to be excluded, a Presentation to the dermatologist recommended. Pityriasis versicolor is usually diagnosed by visual examination, in some cases a Culture or sample biopsy recommended.

You are welcome to make an appointment in our practice in Vienna.

What is the therapy?

Pityriasis versicolor is fortunately neither dangerous nor contagious, but very disturbing for those affected. The treatment is carried out with antifungals (antimycotics), whereby a local application (as cream, shampoo) is usually sufficient.

In very severe cases, if the local antimycotics are not sufficient, a one-week course of tablet cure be consulted. In this case, however, it is essential to pay attention to blood values and existing medication, as there may be an interaction between the following.

After successful treatment of pityriasis versicolor, relapses are not uncommon, especially with a corresponding predisposition. Therefore, even after successful therapy, it is recommended to use antifungal shampoos for the head and affected areas.

In summer, it is recommended to avoid as much as possible air-permeable clothing (z.B. cotton), which absorbs sweat well. Synthetic substances should be avoided are hardly breathable. In patients who frequently suffer from pityriasis versicolor, regular topical application (e.g.B.

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