What is the characteristic of a raised inflamed lesion that has a white center?

A raised inflamed lesion with a white center is best described as a pustule. Pustules are small, elevated lesions on the skin that contain pus, which gives them their characteristic white or yellowish appearance at the center. This pus is a result of an accumulation of white blood cells, dead cells, and bacteria, typically indicating inflammation or infection.

In contrast, a macule is a flat, discolored spot on the skin that doesn't have any elevation or texture, so it would not present in the manner described. A bulla is a larger fluid-filled blister, which does not necessarily feature a pus-filled center and instead is clear or serous in appearance. A nodule is a solid lump that can be raised and is typically deeper than a pustule, but it does not contain pus or have a white center. Therefore, the distinct characteristics of a pustule make it the accurate choice for identifying the described lesion.