Stephen J. Schueler, M.D.

Overview Incidence Symptoms Evaluation Treatment questions for doctor specialist Home Care itching warning signs Outlook Underlying Cause

Herald Patch Evaluation

The evaluation of pityriasis rosea begins with a brief history and physical examination.

Physical findings in someone with pityriasis rosea may include a rash:

  • Usually starts with one round patch
  • Pink or salmon colored patches
  • Patches are oval in shape
  • Usually forms pattern on the skin that looks like a Christmas tree
  • The rash may cover a large area of skin

The diagnosis of pityriasis is made on physical exam. Rarely, blood tests may be necessary to exclude syphilis, which causes a rash similar to pityriasis rosea.

Tests that may be used to evaluate pityriasis rosea include:

Continue to Herald Patch Treatment

Last Updated: Dec 23, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
Copyright DSHI Systems, Inc. Powered by: FreeMD - Your Virtual Doctor

PubMed Herald Patch References
  1. Karnath B, Hussain N, Bevin M. Pityriasis rosea. Appearance and distribution of macules aid diagnosis. Postgrad Med. 2003 May;113(5):93-4, 97. [12764899]
  2. Stulberg DL, Wolfrey J. Pityriasis rosea. Am Fam Physician. 2004 Jan 1;69(1):87-91. [14727822]
FreeMD is provided for information purposes only and should not be used as a substitute for evaluation and treatment by a physician. Please review our terms of use.