Bacterial infections: recurrent furunculosis: 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 · Bacterial infections: recurrent furunculosis

Sample item

Multiple family members have recurrent furuncles with necrotising pneumonia in one case. Which staphylococcal toxin is implicated?

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

The answer and the reasoning

B. Panton-Valentine leukocidin

Panton-Valentine leukocidin lyses leukocytes and is associated with recurrent skin abscesses and severe necrotising pneumonia, especially in community-acquired MRSA. Management includes drainage and decolonisation with intranasal mupirocin and chlorhexidine washes.

Option by option

  • A. Enterotoxin B

    Enterotoxin B causes food poisoning.

  • B. Panton-Valentine leukocidin (correct)

    Correct. PVL is linked to recurrent abscesses and necrotising pneumonia.

  • C. Toxic shock syndrome toxin-1

    TSST-1 causes toxic shock.

  • D. Exfoliative toxin A

    Exfoliative toxin causes scalded skin syndrome.

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 B, Panton-Valentine leukocidin. Panton-Valentine leukocidin lyses leukocytes and is associated with recurrent skin abscesses and severe necrotising pneumonia, especially in community-acquired MRSA.

Why is "Enterotoxin B" not the answer?

Enterotoxin B causes food poisoning.

Why is "Toxic shock syndrome toxin-1" not the answer?

TSST-1 causes toxic shock.

Why is "Exfoliative toxin A" not the answer?

Exfoliative toxin causes scalded skin syndrome.

What concept does this question test?

It tests Bacterial infections: recurrent furunculosis in Dermatology. Management includes drainage and decolonisation with intranasal mupirocin and chlorhexidine washes.

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 Bacterial infections: recurrent furunculosis?

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.