In acne, which lesion is classified as non-inflammatory?

Study for the NPLEX II Minor Surgery Test. Prepare with flashcards and multiple-choice questions, offering hints and explanations for each task. Master your exam confidently!

Multiple Choice

In acne, which lesion is classified as non-inflammatory?

Explanation:
Distinguish between inflammatory and non-inflammatory acne lesions. The open comedone is non-inflammatory because it is simply a clogged follicular pore filled with keratin and sebum, with little to no inflammatory cell reaction. It remains open to the skin surface, and the plug’s dark color comes from oxidation, not pus. In contrast, papules are raised inflammatory bumps, pustules contain pus, and nodules are larger, deeper inflammatory lumps. So the non-inflammatory lesion among these is the open comedone.

Distinguish between inflammatory and non-inflammatory acne lesions. The open comedone is non-inflammatory because it is simply a clogged follicular pore filled with keratin and sebum, with little to no inflammatory cell reaction. It remains open to the skin surface, and the plug’s dark color comes from oxidation, not pus. In contrast, papules are raised inflammatory bumps, pustules contain pus, and nodules are larger, deeper inflammatory lumps. So the non-inflammatory lesion among these is the open comedone.

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