Pigmentary disorders: monobenzone: 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.

Try it

Dermatology · Pigmentary disorders: monobenzone

Sample item

For which situation is monobenzyl ether of hydroquinone (monobenzone) used in vitiligo?

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

The answer and the reasoning

C. Depigmenting residual normal skin in extensive, refractory vitiligo

Monobenzone 20 percent is used to permanently depigment remaining pigmented skin in patients with extensive vitiligo (typically over half of the body surface) who have failed repigmentation. The result is permanent and the patient must accept lifelong sun protection. It is not used to repigment.

Option by option

  • A. Treating melasma

    It is not a melasma treatment because of risk of permanent depigmentation.

  • B. Treating tinea versicolor

    It has no antifungal role.

  • C. Depigmenting residual normal skin in extensive, refractory vitiligo (correct)

    Correct. Monobenzone permanently depigments remaining skin in extensive vitiligo.

  • D. Repigmenting small facial patches

    It does not repigment patches.

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, Depigmenting residual normal skin in extensive, refractory vitiligo. Monobenzone 20 percent is used to permanently depigment remaining pigmented skin in patients with extensive vitiligo (typically over half of the body surface) who have failed repigmentation.

Why is "Treating melasma" not the answer?

It is not a melasma treatment because of risk of permanent depigmentation.

Why is "Treating tinea versicolor" not the answer?

It has no antifungal role.

Why is "Repigmenting small facial patches" not the answer?

It does not repigment patches.

What concept does this question test?

It tests Pigmentary disorders: monobenzone in Dermatology. The result is permanent and the patient must accept lifelong sun protection. It is not used to repigment.

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 Pigmentary disorders: monobenzone?

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.