Which statement describes a vesicle?

A vesicle is defined as a small, fluid-filled lesion that appears on the skin. This type of skin lesion typically contains clear serum or other fluids and can be associated with various dermatological conditions, such as herpes simplex virus infections, contact dermatitis, or chickenpox. The presence of fluid within a vesicle differentiates it from other types of skin lesions, which may not have fluid or may be composed of solid tissue.

Options that refer to solid raised areas, scaling patches, or mere color changes pertain to different dermatological findings such as papules, plaques, or macules, respectively. Understanding how to identify a vesicle versus these other conditions is crucial in dermatology, as it impacts diagnosis and treatment strategies.