Describe an atypical nevus?

• A. Benign with uniform borders
• B. Moles with symmetrical features
• C. Unusual features such as indistinct edge and/or larger size
• D. Flat, uniformly pigmented patches

Answer: (C)

Atypical nevus, or dysplastic nevus, is defined by features that stand out from ordinary moles, notably irregular or indistinct borders and a larger size than typical nevi, often with color variation. These unusual characteristics signal a departure from the uniform, symmetrical appearance of benign moles. The description that highlights indistinct edge and/or larger size directly captures this atypical presentation. In contrast, benign nevi are usually well-defined, symmetric, and evenly pigmented, which is why those other descriptions describe ordinary moles rather than atypical ones.