Which is described as an elevated, circumscribed skin lesion that is less than 1 cm in diameter and filled with serous fluid?
a. Cyst
b. Papule
c. Pustule
d. Vesicle
ANS: D
A vesicle is elevated, circumscribed, superficial, smaller than 1 cm in diameter, and filled with serous fluid. A cyst is elevated, circumscribed, palpable, encapsulated, and filled with liquid or semisolid material. A papule is elevated; palpable; firm; circumscribed; smaller than 1 cm in diameter; and brown, red, pink, tan, or bluish red. A pustule is elevated, superficial, and similar to a vesicle but filled with purulent fluid.
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