Tags: Disease.
Keratosis (from keratinocyte the prominent cell type in the epidermis and -osis abnormal) is a growth of keratin on the skin or on mucous membranes. More specifically it can refer to: actinic keratosis (also known as solar keratosis) hydrocarbon keratosis keratosis pilaris (KP also known as follicular keratosis) seborrheic keratosisActinic keratoses are pre-malignant growths. Seborrheic keratoses are not pre-malignant.