Pityriasis nigra
= Pityriasis nigra
An unstable historical category for dark eruptions or pigmentation, sometimes described as dark <pityriasis versicolor>. It cannot be assigned one modern pathogen from the name alone.
= Pityriasis nigra
An unstable historical category for dark eruptions or pigmentation, sometimes described as dark <pityriasis versicolor>. It cannot be assigned one modern pathogen from the name alone.