Which set of words correctly describes the ABCDE criteria used to assess melanoma?

Which set of words correctly describes the ABCDE criteria used to assess melanoma?

• A. Appearance, Border, Color, Diameter, Evolution
• B. Asymmetry, Border, Color, Diameter, Distance
• C. Asymmetry, Border, Color, Diameter, Evolution
• D. Asymmetry, Border, Color, Diameter, Morphology

Answer: (C)

Melanoma screening hinges on recognizing the features captured by the ABCDE framework: asymmetry, border, color, diameter, and evolution. Asymmetry means the two halves of a pigmented lesion do not match; benign moles are usually symmetric, while melanomas tend to be asymmetric as they grow unpredictably. Border irregularity refers to edges that are uneven, notched, or blurred rather than smooth and well circumscribed. Color variation is a red flag when a single lesion shows multiple colors or uneven pigment distribution, reflecting heterogeneous pigment production and tumor growth. Diameter points to a lesion that is larger than a pencil eraser, recognizing that bigger size raises concern even though melanomas can occur small; the important idea is that larger lesions warrant closer scrutiny. Evolution captures changes over time—any alteration in size, shape, color, elevation, or new symptoms like itching or bleeding signals a lesion that is evolving and may be malignant. The set described by these terms is the one that best fits the standard framework because it includes evolution, which specifically addresses changes over time, something the other options miss. Terms like distance or morphology do not belong in the official criteria, and they don’t convey the diagnostic significance of a lesion that changes as melanoma develops.

Melanoma screening hinges on recognizing the features captured by the ABCDE framework: asymmetry, border, color, diameter, and evolution. Asymmetry means the two halves of a pigmented lesion do not match; benign moles are usually symmetric, while melanomas tend to be asymmetric as they grow unpredictably. Border irregularity refers to edges that are uneven, notched, or blurred rather than smooth and well circumscribed. Color variation is a red flag when a single lesion shows multiple colors or uneven pigment distribution, reflecting heterogeneous pigment production and tumor growth. Diameter points to a lesion that is larger than a pencil eraser, recognizing that bigger size raises concern even though melanomas can occur small; the important idea is that larger lesions warrant closer scrutiny. Evolution captures changes over time—any alteration in size, shape, color, elevation, or new symptoms like itching or bleeding signals a lesion that is evolving and may be malignant.

The set described by these terms is the one that best fits the standard framework because it includes evolution, which specifically addresses changes over time, something the other options miss. Terms like distance or morphology do not belong in the official criteria, and they don’t convey the diagnostic significance of a lesion that changes as melanoma develops.