STI: Clutton joints: 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 · STI: Clutton joints

Sample item

A 10-year-old with interstitial keratitis and saddle nose has painless symmetrical knee effusions. These are called:

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

The answer and the reasoning

D. Clutton joints of late congenital syphilis

Clutton joints are painless, symmetrical effusions of the knees in late congenital syphilis, usually in children aged 8 to 15. They accompany interstitial keratitis, eighth nerve deafness and Hutchinson teeth. The joints are not destroyed.

Option by option

  • A. Haemophilic arthropathy

    Haemophilic arthropathy follows haemarthroses in bleeding disorders.

  • B. Reactive arthritis

    Reactive arthritis is asymmetrical and follows infection.

  • C. Charcot joints of diabetes

    Charcot joints are destructive neuropathic joints in adults.

  • D. Clutton joints of late congenital syphilis (correct)

    Correct. Painless symmetrical knee effusions are Clutton joints.

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 D, Clutton joints of late congenital syphilis. Clutton joints are painless, symmetrical effusions of the knees in late congenital syphilis, usually in children aged 8 to 15.

Why is "Haemophilic arthropathy" not the answer?

Haemophilic arthropathy follows haemarthroses in bleeding disorders.

Why is "Reactive arthritis" not the answer?

Reactive arthritis is asymmetrical and follows infection.

Why is "Charcot joints of diabetes" not the answer?

Charcot joints are destructive neuropathic joints in adults.

What concept does this question test?

It tests STI: Clutton joints in Dermatology. They accompany interstitial keratitis, eighth nerve deafness and Hutchinson teeth. The joints are not destroyed.

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 STI: Clutton joints?

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.