Anorectal: Parks classification: practice question

A General Surgery 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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General Surgery · Anorectal: Parks classification

Sample item

According to Parks classification of anal fistulae, which type is the commonest?

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

The answer and the reasoning

A. Intersphincteric

Intersphincteric fistulae run between the internal and external sphincters and account for about 45 to 70 percent of cases, and they are simple to treat with fistulotomy. Transsphincteric fistulae cross the external sphincter and are the next commonest. Suprasphincteric and extrasphincteric types are rare and difficult.

Option by option

  • A. Intersphincteric (correct)

    Correct. This is the commonest type.

  • B. Extrasphincteric

    Extrasphincteric is rare.

  • C. Suprasphincteric

    Suprasphincteric is uncommon.

  • D. Transsphincteric

    Transsphincteric is the second most common.

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 General Surgery questions

Questions about this General Surgery question

What is the answer to this General Surgery question?

The best answer is A, Intersphincteric. Intersphincteric fistulae run between the internal and external sphincters and account for about 45 to 70 percent of cases, and they are simple to treat with fistulotomy.

Why is "Extrasphincteric" not the answer?

Extrasphincteric is rare.

Why is "Suprasphincteric" not the answer?

Suprasphincteric is uncommon.

Why is "Transsphincteric" not the answer?

Transsphincteric is the second most common.

What concept does this question test?

It tests Anorectal: Parks classification in General Surgery. Transsphincteric fistulae cross the external sphincter and are the next commonest. Suprasphincteric and extrasphincteric types are rare and difficult.

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 Anorectal: Parks classification?

Learn classic signs and eponyms alongside what they diagnose. Then use the flashcards and the other General Surgery 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.