# Porokeratosis plantaris palmaris et disseminata

INSERM

## Source

INSERM. (1999). *Orphanet: an online rare disease and orphan drug data base.*

*Porokeratosis plantaris palmaris et disseminata*. ORPHA:737

Porokeratosis plantaris palmaris et disseminata (PPPD) is a rare form of porokeratosis occurring mainly in adolescence and characterized by small pruritic or painful keratotic papules that first appear on the palms and soles, and may gradually become generalized.