Advanced Health Assessment Practice Exam

Which type of skin cancer is most commonly associated with preexisting nevi?

1. Basal Cell Carcinoma

2. Squamous Cell Carcinoma

3. Melanoma

4. Malignant Melanoma

The correct answer is: Melanoma

The association of skin cancer with preexisting nevi is particularly strong for melanoma, which is a serious form of skin cancer that arises from pigment-producing cells called melanocytes. Nevi, or moles, can be congenital or acquired and are considered potential precursors or risk factors for the development of melanoma. Individuals with numerous or atypical nevi are at an increased risk for melanoma compared to those without such moles. The presence of dysplastic nevi, which are atypical moles that may have irregular borders and varied colors, further elevates this risk. Melanoma is known for its ability to arise from existing nevi, and regular monitoring of these moles is critical for early detection and treatment. In contrast, basal cell carcinoma and squamous cell carcinoma, the other common types of skin cancer, are primarily associated with sun exposure and do not typically arise from preexisting nevi. They are more related to cumulative ultraviolet (UV) exposure rather than changes in existing moles. Therefore, the most accurate answer to the question pertains to melanoma, as it is the type of skin cancer most commonly linked to preexisting nevi.