Acne: practice question

A Dermatology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Dermatology · Acne

Sample item

What lesion is characteristic of comedonal acne?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

A. Blackhead or whitehead

Comedones result from follicular keratin and sebum plugging; open comedones appear black while closed comedones appear white or skin colored.

Option by option

  • A. Blackhead or whitehead (correct)

    Correct: blackheads and whiteheads are comedones.

  • B. Petechia

    Petechiae are tiny nonblanching hemorrhagic spots.

  • C. Purpura

    Purpura is larger nonblanching bleeding into skin.

  • D. Wheal

    A wheal is a transient edematous lesion in urticaria.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Dermatology questions

Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is A, Blackhead or whitehead. Comedones result from follicular keratin and sebum plugging; open comedones appear black while closed comedones appear white or skin colored.

Why is "Petechia" not the answer?

Petechiae are tiny nonblanching hemorrhagic spots.

Why is "Purpura" not the answer?

Purpura is larger nonblanching bleeding into skin.

Why is "Wheal" not the answer?

A wheal is a transient edematous lesion in urticaria.

What concept does this question test?

It tests Acne in Dermatology. The correct option holds because: Correct: blackheads and whiteheads are comedones.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Acne?

Learn each condition by its primary lesion, site and signature sign. Then use the flashcards and the other Dermatology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.