Sinuses: oroantral fistula: practice question

A ENT 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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ENT · Sinuses: oroantral fistula

Sample item

A man has nasal regurgitation of fluids and a sinus on the upper alveolus after extraction of the upper first molar. What is the likely diagnosis?

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

The answer and the reasoning

A. Oroantral fistula

The roots of upper molars lie close to the floor of the maxillary sinus, so extraction can leave a communication with the oral cavity. Treatment is closure with a buccal advancement flap after controlling sinus infection.

Option by option

  • A. Oroantral fistula (correct)

    Correct. Tooth extraction can create an oroantral fistula.

  • B. Choanal atresia

    Choanal atresia presents in neonates.

  • C. Cleft palate

    Cleft palate is congenital.

  • D. Antrochoanal polyp

    An antrochoanal polyp does not cause oral communication.

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 ENT question

What is the answer to this ENT question?

The best answer is A, Oroantral fistula. The roots of upper molars lie close to the floor of the maxillary sinus, so extraction can leave a communication with the oral cavity.

Why is "Choanal atresia" not the answer?

Choanal atresia presents in neonates.

Why is "Cleft palate" not the answer?

Cleft palate is congenital.

Why is "Antrochoanal polyp" not the answer?

An antrochoanal polyp does not cause oral communication.

What concept does this question test?

It tests Sinuses: oroantral fistula in ENT. Treatment is closure with a buccal advancement flap after controlling sinus infection.

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 Sinuses: oroantral fistula?

Learn tuning fork results and audiogram patterns by sketching them. Then use the flashcards and the other ENT 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.