Psoriasis: 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 · Psoriasis

Sample item

Which nail finding supports a diagnosis of psoriasis in a patient with scaly extensor plaques?

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

The answer and the reasoning

C. Nail pitting

Psoriasis can involve the nail matrix and plate, producing characteristic small pits, onycholysis, and subungual hyperkeratosis that may help distinguish it from isolated eczema.

Option by option

  • A. Koilonychia

    Koilonychia is spooning of the nails, often linked to iron deficiency.

  • B. Beau lines after chemotherapy

    Beau lines are transverse growth interruptions after systemic stress or toxic exposure.

  • C. Nail pitting (correct)

    Correct: nail pitting is a classic psoriatic nail change.

  • D. Clubbing

    Clubbing suggests chronic pulmonary, cardiac, or gastrointestinal disease.

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 C, Nail pitting. Psoriasis can involve the nail matrix and plate, producing characteristic small pits, onycholysis, and subungual hyperkeratosis that may help distinguish it from isolated eczema.

Why is "Koilonychia" not the answer?

Koilonychia is spooning of the nails, often linked to iron deficiency.

Why is "Beau lines after chemotherapy" not the answer?

Beau lines are transverse growth interruptions after systemic stress or toxic exposure.

Why is "Clubbing" not the answer?

Clubbing suggests chronic pulmonary, cardiac, or gastrointestinal disease.

What concept does this question test?

It tests Psoriasis in Dermatology. The correct option holds because: Correct: nail pitting is a classic psoriatic nail change.

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 Psoriasis?

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.