How does a papule differ from a plaque in size?

A papule is defined as a small, raised lesion on the skin that is typically less than 0.5 cm in diameter. It is characterized by its solid texture and can vary in color. In contrast, a plaque is a larger, elevated lesion that measures more than 0.5 cm in diameter and often has a flat top. The distinction in size is crucial for dermatological evaluations and helps in accurately diagnosing skin conditions.

The correct answer highlights this size difference, establishing that a papule is less than 0.5 cm and a plaque exceeds this measurement. Understanding these definitions is essential for recognizing various skin lesions and their potential associations with different dermatological disorders.