Otosclerosis: site of origin: 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 · Otosclerosis: site of origin

Sample item

In otosclerosis, where does the focus most commonly begin in the otic capsule?

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

The answer and the reasoning

C. Fissula ante fenestram, just in front of the oval window

The commonest site is the fissula ante fenestram anterior to the oval window. Extension onto the stapes footplate fixes the stapes and causes conductive loss. Round window involvement is less frequent.

Option by option

  • A. Promontory posterior to the oval window

    Posterior to the oval window is not the usual origin.

  • B. Round window niche

    The round window is a less common site.

  • C. Fissula ante fenestram, just in front of the oval window (correct)

    Correct. The fissula ante fenestram is the classic site.

  • D. Internal acoustic meatus

    The IAM is not a site of otosclerosis.

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 ENT questions

Questions about this ENT question

What is the answer to this ENT question?

The best answer is C, Fissula ante fenestram, just in front of the oval window. The commonest site is the fissula ante fenestram anterior to the oval window.

Why is "Promontory posterior to the oval window" not the answer?

Posterior to the oval window is not the usual origin.

Why is "Round window niche" not the answer?

The round window is a less common site.

Why is "Internal acoustic meatus" not the answer?

The IAM is not a site of otosclerosis.

What concept does this question test?

It tests Otosclerosis: site of origin in ENT. Extension onto the stapes footplate fixes the stapes and causes conductive loss. Round window involvement is less frequent.

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 Otosclerosis: site of origin?

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.