Keratosis, also known as actinic keratosis, is related to keratosis, seborrheic and keratosis pilaris atrophicans, and has symptoms including exanthema, pruritus and trichorrhexis invaginata. An important gene associated with Keratosis is CTSC (Cathepsin C), and among its related pathways/superpathways are Nervous system development and Keratinization. The drugs Lidocaine and Petrolatum have been mentioned in the context of this disorder. Affiliated tissues include skin and kidney, and related phenotypes are homeostasis/metabolism and growth/size/body region