Pityriasis Rosea is a topic covered in the 5-Minute Emergency Consult.

To view the entire topic, please or purchase a subscription.

Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:

Emergency Central

-- The first section of this topic is shown below --

Basics

Description

  • A self-limited skin exanthem of unknown origin primarily affecting children and young adults
  • Skin findings often begin with an isolated “herald patch,” an ovoid erythematous raised lesion seen along the trunk and extremities
  • A secondary eruption usually follows, where multiple smaller exanthems appear along the Langer lines of the trunk and proximal extremities in a symmetric “Christmas tree pattern”
  • Nearly 80% of symptoms resolve within 2 mo

Etiology

  • Unknown, although there is weak evidence for a viral etiology such as herpes 6 and 7
  • Many medications have been associated with a pityriasis-like reaction:
    • Barbiturates
    • Captopril
    • Clonidine
    • Gold
    • Isotretinoin
    • Metronidazole
    • Bismuth
    • Hepatitis B vaccine
    • Gleevec
    • Interferon
  • Eczema, asthma, and underlying malignancies may be weakly associated

-- To view the remaining sections of this topic, please or purchase a subscription --

Citation

* When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Pityriasis Rosea ID - 307281 Y1 - 2016 PB - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307281/all/Pityriasis_Rosea ER -