Final answer:
Basal cell carcinoma is most commonly found on the head, neck, arms, and back. UV rays from the sun are the main cause, but other factors may contribute as well. Early detection and treatment are important for successful outcomes.
Step-by-step explanation:
Basal cell carcinoma is most commonly found on the head, neck, arms, and back. These areas are the most susceptible to long-term sun exposure, which is the main cause of this type of skin cancer. In addition to UV rays, other factors like radiation, arsenic exposure, and skin wounds may contribute to the development of basal cell carcinoma. It starts in the stratum basale layer of the epidermis and can spread along this boundary. It usually appears as an uneven patch, bump, growth, or scar on the skin surface.
Early detection and treatment are crucial for the best outcomes. Treatment options include surgery, freezing (cryosurgery), and topical ointments.