What type of cancer is several times more common than squamous cell cancer?

Basal cell carcinoma is indeed several times more common than squamous cell carcinoma, making it the most prevalent form of skin cancer. Studies and clinical data show that basal cell carcinoma accounts for a significant percentage of nonmelanoma skin cancers, with estimates suggesting it is responsible for more than 80% of all diagnosed skin cancer cases.

One reason for the high incidence of basal cell carcinoma is the prolonged exposure to ultraviolet (UV) rays from the sun or tanning beds, which plays a crucial role in its development. Additionally, basal cell carcinoma typically arises in areas of the skin that are frequently exposed to sunlight, such as the face, neck, and ears.

In contrast, squamous cell carcinoma, while serious and important to recognize, occurs less frequently. Other options such as melanoma, dysplastic nevi, and keratoacanthoma are important conditions but do not match the high incidence rate of basal cell carcinoma, highlighting why it is the correct answer in this context.