| Keratosis | |
|---|---|
 | |
| Upper arm showing keratosis pilaris | |
| Specialty | Dermatology, medical genetics  |
Keratosis (from kerat- + -osis)[1] is a growth of keratin on the skin or on mucous membranes stemming from keratinocytes, the prominent cell type in the epidermis. More specifically, it can refer to:
- actinic keratosis (also known as solar keratosis), a premalignant condition
- chronic scar keratosis
- hydrocarbon keratosis
- keratosis pilaris (KP, also known as follicular keratosis)
- seborrheic keratosis, not premalignant
- ^ Merriam-Webster, Merriam-Webster's Unabridged Dictionary, Merriam-Webster, archived from the original on 2020-05-25, retrieved 2018-03-28.