Pityriasis lichenoides et varioliformis acuta
Synonyms and keywords:

# Overview
Pityriasis Lichenoides et Varioliformis Acuta, or Mucha Habermann's Disease, short form PLEVA, is a disease of the immune system. It is the more severe version of Pityriasis lichenoides chronica. The disease is characterized by rashes and small lesions on the skin. The disease is most common in males and usually occurs in childhood, although it has been seen in every age group and every race.  It is possible for the disease to go into remission for short periods of time or forever.

# Historical Perspective

# Classification

# Pathophysiology

# Causes

# Differentiating Pityriasis Lichenoides et Varoliformis Acuta from other Diseases
- It is commonly misdiagnosed as chickenpox or rosacea.

# Epidemiology and Demographics

## Age

## Gender

## Race

# Risk Factors

# Natural History, Complications and Prognosis
- Prognosis is usually good with treatment.

# Diagnosis

## Diagnostic criteria
The most common way to diagnose is by biopsy.

## History and Symptoms

## Physical Examination

### Skin
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.
- Pityriasis lichenoides et varioliformis acuta. With permission from Dermatology Atlas.

## Laboratory Findings

## Imaging Findings

## Other Diagnostic Studies

# Treatment

## Medical therapy
It is not contagious and currently there is no cure for the disease, although the lesions can be treated with ultraviolet therapy as well as topical steroids and antibiotics.
Treatment often involves multiple therapies that address the immune system and bacterial, viral, or dermatological causes.

## Surgery

## Prevention