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Dermatographism with vulvar symptoms.

Sydney Rivera1, Ginat W Mirowski2,3

  • 1School of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.

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Summary

Dermatographism with vulvar symptoms (DG-VS) is a treatable cause of vulvar itch. Prompt diagnosis via scratch test and antihistamine treatment offer significant relief.

Keywords:
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Area of Science:

  • Dermatology
  • Gynecology

Background:

  • Dermatographism (DG) involves a wheal-and-flare response to mechanical pressure.
  • Vulvar symptoms are often unresponsive to standard treatments, suggesting less common etiologies.

Purpose of the Study:

  • To report a case of dermatographism with vulvar symptoms (DG-VS).
  • To review the literature on DG-VS as a cause of vulvar complaints.
  • To highlight the diagnostic and treatment approach for DG-VS.

Main Methods:

  • Case presentation of a 35-year-old woman with chronic vulvar pruritus.
  • Literature review of patients with DG-VS.
  • Diagnosis confirmed by clinical findings and a positive scratch test.

Main Results:

  • The patient achieved complete symptom control with low-dose hydroxyzine.
  • Literature indicates DG-VS typically affects reproductive-aged women with chronic symptoms.
  • Mechanical pressure (e.g., clothing, sexual activity) often exacerbates symptoms.

Conclusions:

  • Dermatographism with vulvar symptoms is an underrecognized cause of vulvar pruritus.
  • Diagnosis relies on clinical suspicion, symptom patterns, and a scratch test.
  • Antihistamine therapy is effective for managing DG-VS, though it's absent from current guidelines.