MedGen

A localized pathological or traumatic structural change, damage, deformity, or discontinuity of skin. [from NCI]

Epidermodysplasia verruciformis (EV) is a rare inherited genodermatosis characterized by chronic infection with human papillomavirus (HPV) leading to polymorphous cutaneous lesions and high risk of developing non melanoma skin cancer. [from ORDO]

The presence of a basal cell carcinoma of the skin. [from HPO]

A pathological process with signs indicating it may become cancerous. Representative examples include leukoplakia, dysplastic nevus, actinic keratosis, xeroderma pigmentosum, and intraepithelial neoplasia. [from NCI]

A neoplasm considered precancerous and/or with high potential to become malignant. In solid organ neoplasms, the neoplasm has not broken through a basement membrane. [from SNOMEDCT_US]

Epidermodysplasia verruciformis-3 (EV3) is characterized by onset in childhood or early adulthood of persistent disseminated flat warts and pityriasis versicolor-like lesions of the skin that are induced by cutaneous human papillomaviruses (HPVs) of the beta genus. Some patients develop nonmelanoma skin cancer, particularly on areas of the body exposed to the sun. Patients are otherwise healthy and normally resistant to other microorganisms, including other viruses and skintropic pathogens, and even all other cutaneous and mucosal HPVs (de Jong et al., 2018). For a discussion of genetic heterogeneity of susceptibility to epidermodysplasia verruciformis, see EV1 (226400). [from OMIM]

A squamous papilloma that involves the zone of skin. [from MONDO]