A raised skin lesion smaller than 1 cm in diameter.

A raised skin lesion smaller than 1 cm in diameter.

• A. Pustule
• B. Crust
• C. Papule
• D. Petechiae

Answer: (C)

A raised skin lesion smaller than 1 cm is best described as a papule. A papule is a solid, elevated bump that is less than 1 centimeter in diameter, resulting from thickened or inflamed skin without fluid-filled content. This distinguishes it from other features: a pustule is similar in being raised, but it contains pus, making the lesion fluid-filled rather than just solid. A crust is a dried exudate on the surface of the skin, not a raised lesion with depth. Petechiae are tiny red or purple spots due to bleeding under the skin and are flat, not raised. So the solid, non-fluid, under-1-cm elevation points to papule.

A raised skin lesion smaller than 1 cm is best described as a papule. A papule is a solid, elevated bump that is less than 1 centimeter in diameter, resulting from thickened or inflamed skin without fluid-filled content. This distinguishes it from other features: a pustule is similar in being raised, but it contains pus, making the lesion fluid-filled rather than just solid. A crust is a dried exudate on the surface of the skin, not a raised lesion with depth. Petechiae are tiny red or purple spots due to bleeding under the skin and are flat, not raised. So the solid, non-fluid, under-1-cm elevation points to papule.