👉 The term "ceratoid" is a type of tumor that arises from the cells in the skin. It is characterized by the presence of keratin, which is an essential component of the skin's epidermis. Keratinocytes are the main cells responsible for maintaining the structure and function of the skin. When these cells become damaged or destroyed, they can lead to a condition called keratosis pilaris, which is a common type of ceratoid tumor. Other types of cer