Which type of skin cancer is most commonly associated with UV exposure?

• A. Melanoma
• B. Basal cell carcinoma
• C. Squamous cell carcinoma
• D. Dermatofibrosarcoma

Answer: (B)

Basal cell carcinoma is the type of skin cancer most commonly associated with UV exposure. This skin cancer arises from the basal cells located in the lower part of the epidermis, which are responsible for producing new skin cells. Basal cell carcinoma is particularly linked to sun exposure, as ultraviolet (UV) rays can cause damage to the DNA in skin cells, leading to mutations that result in uncontrolled growth.

Long-term exposure to UV radiation, such as that from sunlight or tanning beds, significantly increases the risk of developing basal cell carcinoma. This cancer tends to grow slowly and is usually localized, making it less likely to metastasize compared to other skin cancers, such as melanoma. However, despite its relatively low risk of spreading, it can cause significant local damage and should be treated promptly.

Understanding the connection between UV exposure and basal cell carcinoma is crucial for prevention strategies, emphasizing the importance of sun protection measures such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours.