Leprosy: borderline leprosy: 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 · Leprosy: borderline leprosy

Sample item

Which lesion morphology is most characteristic of mid-borderline (BB) leprosy?

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

The answer and the reasoning

C. Punched-out or inverted saucer lesions with a sharply defined inner edge

Mid-borderline leprosy, the most unstable part of the spectrum, shows punched-out or inverted saucer plaques with a well-defined inner margin and a sloping outer edge. It tends to downgrade toward lepromatous disease or upgrade with treatment.

Option by option

  • A. Diffuse symmetric infiltration of face and ears

    Diffuse symmetric infiltration is typical of lepromatous leprosy.

  • B. Small follicular papules on the trunk

    Follicular papules are not typical of leprosy.

  • C. Punched-out or inverted saucer lesions with a sharply defined inner edge (correct)

    Correct. Inverted saucer lesions are typical of BB.

  • D. A single hypopigmented macule

    A single macule suggests indeterminate or tuberculoid 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.

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Questions about this Dermatology question

What is the answer to this Dermatology question?

The best answer is C, Punched-out or inverted saucer lesions with a sharply defined inner edge. Mid-borderline leprosy, the most unstable part of the spectrum, shows punched-out or inverted saucer plaques with a well-defined inner margin and a sloping outer edge.

Why is "Diffuse symmetric infiltration of face and ears" not the answer?

Diffuse symmetric infiltration is typical of lepromatous leprosy.

Why is "Small follicular papules on the trunk" not the answer?

Follicular papules are not typical of leprosy.

Why is "A single hypopigmented macule" not the answer?

A single macule suggests indeterminate or tuberculoid disease.

What concept does this question test?

It tests Leprosy: borderline leprosy in Dermatology. It tends to downgrade toward lepromatous disease or upgrade with treatment.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. 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 Leprosy: borderline leprosy?

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.