Infestations: crusted scabies: 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 · Infestations: crusted scabies

Sample item

A patient on long-term oral steroids has thick warty crusts on the hands and feet with thousands of mites and highly contagious spread. What is this form called?

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

The answer and the reasoning

A. Crusted (Norwegian) scabies

Crusted scabies occurs in immunosuppressed, elderly or institutionalised patients and carries thousands of mites. It requires repeated oral ivermectin with topical scabicides and keratolytics, and isolation.

Option by option

  • A. Crusted (Norwegian) scabies (correct)

    Correct. Hyperkeratotic crusts with huge mite burden define this form.

  • B. Scabies incognito

    Scabies incognito refers to atypical disease modified by topical steroids.

  • C. Nodular scabies

    Nodular scabies shows persistent itchy nodules in covered sites.

  • D. Bullous scabies

    Bullous scabies resembles pemphigoid.

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, Crusted (Norwegian) scabies. Crusted scabies occurs in immunosuppressed, elderly or institutionalised patients and carries thousands of mites.

Why is "Scabies incognito" not the answer?

Scabies incognito refers to atypical disease modified by topical steroids.

Why is "Nodular scabies" not the answer?

Nodular scabies shows persistent itchy nodules in covered sites.

Why is "Bullous scabies" not the answer?

Bullous scabies resembles pemphigoid.

What concept does this question test?

It tests Infestations: crusted scabies in Dermatology. It requires repeated oral ivermectin with topical scabicides and keratolytics, and isolation.

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 Infestations: crusted scabies?

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.