Abstract
Pityriasis commonly refers to flaking (or scaling) of the skin. The word comes from the Greek πίτυρον "bran".
Classification
Types include:
- Pityriasis alba
- Pityriasis lichenoides chronica
- Pityriasis lichenoides et varioliformis acuta
- Pityriasis rosea
- Pityriasis circinata
- Pityriasis rubra pilaris
- Pityriasis versicolor
- Dandruff, historically called "Pityriasis capitis"
- Pityriasis amiantacea