A small inflamed elevation containing purulent fluid.

A small inflamed elevation containing purulent fluid.

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

Answer: (B)

A pustule is a small raised, inflamed skin bump that contains pus. The key feature here is the purulent fluid inside the lesion, which signals an accumulation of neutrophils and bacteria in response to infection or acute inflammation. A papule, by contrast, is a solid raised area without any fluid inside. A crust is dried material that forms on the surface after a lesion ruptures or drains. Petechiae are tiny non-blanching spots due to fragile capillaries bleeding under the skin, not raised or fluid-filled. So the description fits a pustule because the defining characteristic is a small elevation filled with purulent fluid.

A pustule is a small raised, inflamed skin bump that contains pus. The key feature here is the purulent fluid inside the lesion, which signals an accumulation of neutrophils and bacteria in response to infection or acute inflammation.

A papule, by contrast, is a solid raised area without any fluid inside. A crust is dried material that forms on the surface after a lesion ruptures or drains. Petechiae are tiny non-blanching spots due to fragile capillaries bleeding under the skin, not raised or fluid-filled.

So the description fits a pustule because the defining characteristic is a small elevation filled with purulent fluid.