Pityriasis rosea

  title={Pityriasis rosea},
  author={Samantha Eisman and Rodney Sinclair},
  journal={BMJ : British Medical Journal},
The cause of pityriasis rosea is uncertain but epidemiological (seasonal variation and clustering in communities) and clinical features suggest an infective agent. Light and electron microscopy findings suggest infectionwith human herpesviruses 6 and 7 (HHV-6/7). These viral antigens have been detected in skin lesions by immunohistochemistry and their DNA has been isolated from non-lesional skin, peripheral blood mononuclear cells, serum, and saliva samples. HHV-6 and HHV-7may also interact… 

Pityriasis in dermatology: an updated review

It is important for dermatologists to be aware and updated on all pityriasis conditions in dermatology, with some common and others quite rare.

Dermoscopic profile of pityriasis rosea

The most comprehensive study focusing on the dermoscopic features of Pityriasis rosea, and it can be concluded that dermoscopy may provide remarkable clues to diagnosis, especially in atypical presentations of the entity.

Pityriasis Rosea in a Mother and her Daughter: A Case Report

An overview of common, rare and atypical manifestations of cutaneous lupus erythematosus and histopathological co‐rrelates is presented.

Acute exanthemas: a prospective study of 98 adult patients with an emphasis on cytokinic and metagenomic investigation

Acute exanthemas (AEs) are frequently seen; they can be caused by drugs or viruses but often the cause is unknown.

The efficacy of oral acyclovir during early course of pityriasis rosea: a systematic review and meta-analysis

Oral acyClovir may be a relatively safe and effective treatment in the early course of PR, and patients with PR may achieve faster symptoms control with acyclovir.

An Annular Plaque on the Back.

A 24-year-old man presented with a mildly pruritic, spreading rash that was preceded by a single plaque on his back.

Exantheme jenseits von Kinderkrankheiten

Ein sich rasch ausbreitender „Ausschlag“ am ganzen Körper ist für Patienten extrem beunruhigend und bewegt viele zu einer zeitnahen Vorstellung beim Hausarzt. Die diagnostische Einordnung ist nicht

Feature selection and pattern recognition for different types of skin disease in human body using the rough set method

  • A. SinhaNishant Namdev
  • Computer Science
    Network Modeling Analysis in Health Informatics and Bioinformatics
  • 2020
This paper uses histopathological skin data samples to exhibits strategy for multi-source, multi-methodology, and multi-scale data frameworks and shows that the system performance accuracy of the pattern for six types of skin disease is 96.62% in the rough set method.

Intensely Pruritic Rash for Five Weeks.



Pityriasis rosea--an update.

In managing a patient with PR, it should concentrate more on how the eruption is affecting the quality of life, rather than the extent and severity of the eruption, i.e. the illness, ratherthan the extent of the illness.

Pityriasis rosea and pityriasis rosea-like eruptions.

Multiple Recurrences in Pityriasis Rosea - A Case Report with Review of the Literature

A case of pityriasis rosea is reported in an 11-years-old male with three episodes with review of the literature, and no predisposing factors identified.

Pityriasis rosea is associated with systemic active infection with both human herpesvirus-7 and human herpesvirus-6.

The results suggest that pityriasis rosea is associated with systemic active infection with both human herpesvirus-7 and human herpes virus-6, and in situ hybridization enabled detection of human HSV-6 in skin and other tissues isolated from patients with pityriases rosea.

Atypical presentations of pityriasis rosea: case presentations

  • A. ChuhV. ZawarA. Lee
  • Medicine
    Journal of the European Academy of Dermatology and Venereology : JEADV
  • 2005
It is believed that it is difficult to make a clear division to define typical and atypical PR, and it is important not to ascribe any unusual or atypicals skin eruption with PR unless other dermatoses have been excluded.

Interventions for pityriasis rosea.

There is inadequate evidence for efficacy for most treatments for pityriasis rosea, but oral erythromycin may be effective in treating the rash and decreasing the itch and both dexchlorpheniramine and betamethasone alone seem to be better at clearing rash.

Case reports and studies on pityriasis rosea – from number of patients to meta-analyses and diagnostic criteria

A diagnostic criteria for typical and atypical PR is proposed and it is believed that the rash in this infant in concern fulfils all the three essential clinical features, and therefore can be meta-analysed and systematically reviewed with regard to aetiology, immunopathogenesis, and management strategies.

Efficacy of clarithromycin in pityriasis rosea.

Clarithromycin is not effective in treatment of pityriasis rosea and should not be considered as a treatment option, according to the authors.

Human herpesvirus 6 and 7 DNA in peripheral blood leucocytes and plasma in patients with pityriasis rosea by polymerase chain reaction: a prospective case control study.

It is found that there is no evidence of recent HHV-6 orHHV-7 infection in patients with a diagnosis of pityriasis rosea, and antibody to HHv-7 was found in all 15 of patients and controls.