What medical term should be used to describe elevated, round, blister-like lesions filled with clear fluid?

The term that accurately describes elevated, round, blister-like lesions filled with clear fluid is vesicles. Vesicles are characterized by their small size and the presence of a serous fluid inside. These lesions can be seen in various conditions, such as viral infections like herpes simplex or in contact dermatitis.

Pustules, in contrast, are similar in shape but are filled with pus rather than clear fluid, indicating an infection or inflammatory response. Papules are solid, raised lesions that are typically smaller than vesicles and do not contain fluid. Lastly, plaques are larger, flat-topped lesions often associated with conditions like psoriasis, and they do not match the description of being blister-like or fluid-filled. Understanding these distinctions is crucial for accurate diagnosis and treatment within clinical practice.