Riehl Melanosis (Pigmented Contact Dermatitis) Questions & Answers

Updated: May 27, 2021
  • Author: Elizabeth K Satter, MD, MPH; Chief Editor: William D James, MD  more...
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Questions & Answers

Overview

What is Riehl melanosis (pigmented contact dermatitis)?

What is the pathophysiology of Riehl melanosis (pigmented contact dermatitis)?

What causes Riehl melanosis (pigmented contact dermatitis)?

What is the role of kumkum in the etiology of Riehl melanosis (pigmented contact dermatitis)?

What is the role of anti-SSA (Ro) antibodies in the etiology of Riehl melanosis (pigmented contact dermatitis)?

What is the prevalence of Riehl melanosis (pigmented contact dermatitis)?

What are the racial predilections of Riehl melanosis (pigmented contact dermatitis)?

What are the sexual predilections of Riehl melanosis (pigmented contact dermatitis)?

Which age groups have the highest prevalence of Riehl melanosis (pigmented contact dermatitis)?

What is the prognosis of Riehl melanosis (pigmented contact dermatitis)?

What is included in patient education about Riehl melanosis (pigmented contact dermatitis)?

Presentation

What are the signs and symptoms of Riehl melanosis (pigmented contact dermatitis)?

Which physical findings are characteristic of Riehl melanosis (pigmented contact dermatitis)?

DDX

Which conditions are included in the differential diagnoses of Riehl melanosis (pigmented contact dermatitis)?

What are the differential diagnoses for Riehl Melanosis (Pigmented Contact Dermatitis)?

Workup

Which tests are performed in the workup of Riehl melanosis (pigmented contact dermatitis)?

Which histologic findings are characteristic of Riehl melanosis (pigmented contact dermatitis)?

What are dermoscopy findings in Riehl melanosis (pigmented contact dermatitis)?

What are microscopy findings in Riehl melanosis (pigmented contact dermatitis)?

Treatment

How is Riehl melanosis (pigmented contact dermatitis) treated?

Medications

What is the role of medications in the treatment of Riehl melanosis (pigmented contact dermatitis)?