Which of the following lesions is another name for a birthmark?

A birthmark is commonly referred to as a nevus. This term encompasses various types of skin lesions that are present at birth or that appear shortly after, which are typically benign growths formed by clusters of pigmented cells. Nevi can come in different forms and appearances, including common moles, and can vary in size and color.

Understanding that a nevus is a specific kind of lesion helps clarify the biological basis of why it is categorized as a birthmark. Nevi are often more than just aesthetic concerns; they may be associated with genetic factors and can serve as markers for certain syndromes or conditions depending on their characteristics and locations on the body.

In contrast, the other options do not relate to birthmarks in the same way. A scale typically refers to a condition of the outer layer of the skin that has thickened and can shed in flakes, a nodule is a small lump that can be felt under the skin, and a macule is a flat discolored lesion not raised above the skin surface. Each of these terms describes different types of skin lesions that do not directly imply the congenital nature or characteristics associated with a birthmark like a nevus does.