[Groups at high risk for skin cancer]

A special program aimed at detecting skin cancer at early stages was worked out and launched into use in 1989. It provides for a series of measures for primary examination and subsequent follow-up of population. Dermatologists conducted examinations of persons at high risk 2-4 times a year depending on the disease. They were joined by oncologists, whenever required, and morphological examinations were sometimes carried out. The group at high risk for skin cancer included patients older than 50, with the following pathologies: (I) Obligate precancerous dermatites: Bowen's syndrome, erythroplasia of Queyrat, Paget's disease (extramammary localization), intraepidermal epithelioma of Jadassohn, late-onset radiation dermatitis, early childhood-Kaposi's disease, Manganotti's chilitis and verrucous precancer of the lip; Optional precancerous dermatosis: childhood-onset epidermodysplasia veruciformis, actinic keratosis, cutaneous horn, keratoacanthoma, carcinoid papillomatosis of Gottron, giant condyloma of Buschke-Lowenstein, leukoplakia and limited precancerous hyperkeratosis of the lip's red edge; (2) Dermatoses involving pathological regeneration: eruthematosis, lupus tuberculosis, psoriasis (more than 15 years old), trophic ulcers, extensive scars (particularly, those caused by burns), chronic ulcerative pyoderma and pyoderma vegetans; (3) Hemorrhagic diathesis on the surface or fundus of neoplasm; (4) Consolidation at neoplasm base; (5) Absence of complaints; (6) Resistance to therapy.