Epitheliomas, although malignant tumors, rarely produce metastases. Thus, their malignancy is mainly expressed in the area of onset, and their surgical removal is almost always resolving. They are divided into Basaliomas (basal cell carcinoma) and Spinaliomas (spinocellular carcinomas).
Their occurrence is closely related to sun exposure (long and sustained) and prefers fair-skinned subjects, photo-exposed areas, and subjects who for work or play activities are exposed to the sun for a long time. Inevitably, a genetic predisposition is always present.
