A circumscribed, elevated, fluid-filled lesion greater than 1 cm in size describes which cutaneous lesion?

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Multiple Choice

A circumscribed, elevated, fluid-filled lesion greater than 1 cm in size describes which cutaneous lesion?

Explanation:
Think of how skin lesions are categorized by whether they are fluid-filled and how big they are. A bulla is a circumscribed, elevated blister that contains clear fluid and measures more than 1 cm. That combination—fluid-filled and >1 cm—fits bullae exactly. Smaller fluid-filled lesions are vesicles, so the size distinction is what separates them. In contrast, papules and nodules are solid elevations rather than fluid-filled, with papules typically under 1 cm and nodules being larger and deeper.

Think of how skin lesions are categorized by whether they are fluid-filled and how big they are. A bulla is a circumscribed, elevated blister that contains clear fluid and measures more than 1 cm. That combination—fluid-filled and >1 cm—fits bullae exactly. Smaller fluid-filled lesions are vesicles, so the size distinction is what separates them. In contrast, papules and nodules are solid elevations rather than fluid-filled, with papules typically under 1 cm and nodules being larger and deeper.

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