Term Name:	actinic keratosis
Synonyms:
Definition:	Discrete, flat or elevated, verrucous, keratotic lesions. Epidermal changes are characterized by acanthosis, parakeratosis, and dyskeratoses. Dysplastic change is present and the keratinocytes vary in size and shape. Associated with UV exposure in humans. Not defined in mice to date.
Ontology:	MPATH [MPATH:151]