Which finding would raise concern for malignancy in a skin lesion?

Which finding would raise concern for malignancy in a skin lesion?

• A. Brown color only
• B. Multishades of blue/black
• C. Regular, smooth border
• D. <5 mm diameter

Answer: (B)

Color variation within a lesion raises concern for malignancy, especially when blue or black tones are present. This multishade appearance signals irregular pigment production and growth at different depths, which is characteristic of melanoma and other malignant processes. The blue/black hues often reflect deeper melanin pigment, suggesting invasion rather than a uniform, benign process. In contrast, a uniformly brown color with a smooth, well-defined border is more typical of benign nevi, and small size alone is not a reliable indicator of cancer. While size and border quality matter, the key red flag here is color variation, which warrants prompt clinical evaluation.

Color variation within a lesion raises concern for malignancy, especially when blue or black tones are present. This multishade appearance signals irregular pigment production and growth at different depths, which is characteristic of melanoma and other malignant processes. The blue/black hues often reflect deeper melanin pigment, suggesting invasion rather than a uniform, benign process. In contrast, a uniformly brown color with a smooth, well-defined border is more typical of benign nevi, and small size alone is not a reliable indicator of cancer. While size and border quality matter, the key red flag here is color variation, which warrants prompt clinical evaluation.