Which of the following is the most common type of malignant skin cancer?

Basal cell carcinoma is the most common type of malignant skin cancer. This type of cancer arises from the basal cells, which are found in the lower part of the epidermis, the outer layer of the skin. It is typically caused by prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds.

Basal cell carcinoma is characterized by its slow growth and low likelihood of metastasizing, which means it is less likely to spread to other parts of the body compared to other types of skin cancer. Although it can be locally invasive and sometimes may require significant treatment, due to its common occurrence, it represents a significant proportion of all skin cancer cases.

Other types of skin cancer, such as melanoma and squamous cell carcinoma, are less common but often regarded as more aggressive forms. While melanoma is known for its ability to spread quickly and can be life-threatening, it accounts for a smaller percentage of skin cancer cases compared to basal cell carcinoma. Squamous cell carcinoma, while also a common form of skin cancer, does not surpass the incidence rate of basal cell carcinoma.

Understanding the prevalence of basal cell carcinoma is essential for awareness and early detection, making it a pivotal topic in gerontology and dermatology practices.