Image: Pityriasis Rosea - MSD Manual Consumer Version

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Pityriasis Rosea

This photo shows bluish purple, scaly patches on the back and arms of a person with pityriasis rosea. Patches that appear more pink in people with light skin appear bluish purple, very dark, or both in people with dark skin.

Image courtesy of Karen McKoy, MD.

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Pityriasis Rosea

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