Which term describes a flat skin lesion?

Which term describes a flat skin lesion?

• A. Vesicle
• B. Macule
• C. Papule
• D. Nodule

Answer: (B)

Describing skin lesions by whether they are flat or raised helps distinguish common terms. A flat skin lesion with a color change and no palpable bump is called a macule. It sits on the surface and isn’t raised, which is exactly what the question describes. Vesicles are small fluid-filled blisters that rise above the skin, so they’re not flat. Papules are small raised solid bumps, and nodules are larger, deeper raised solid lesions. Because the key feature here is flatness, macule is the best term, with examples like freckles. If a flat lesion were larger than about 1 cm, it would be called a patch, but that option isn’t listed.

Describing skin lesions by whether they are flat or raised helps distinguish common terms. A flat skin lesion with a color change and no palpable bump is called a macule. It sits on the surface and isn’t raised, which is exactly what the question describes. Vesicles are small fluid-filled blisters that rise above the skin, so they’re not flat. Papules are small raised solid bumps, and nodules are larger, deeper raised solid lesions. Because the key feature here is flatness, macule is the best term, with examples like freckles. If a flat lesion were larger than about 1 cm, it would be called a patch, but that option isn’t listed.