Oral medicine and oral cancer: modified radical neck dissection: practice question

A Dentistry 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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Dentistry · Oral medicine and oral cancer: modified radical neck dissection

Sample item

A neck dissection clears levels I to V but preserves the spinal accessory nerve, internal jugular vein and sternocleidomastoid. Which operation is this?

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

The answer and the reasoning

A. Modified radical neck dissection

Radical neck dissection removes levels I to V together with the accessory nerve, internal jugular vein and sternocleidomastoid. A modified radical dissection preserves one or more of these, and the version preserving all three has the lowest morbidity.

Option by option

  • A. Modified radical neck dissection (correct)

    Correct. Clearing levels I to V while sparing all three structures is a modified radical dissection.

  • B. Extended radical neck dissection

    Extended radical dissection removes additional nodal groups or structures beyond the radical operation.

  • C. Radical neck dissection

    Radical dissection sacrifices all three structures.

  • D. Supraomohyoid neck dissection

    Supraomohyoid dissection clears only levels I to III.

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 Dentistry question

What is the answer to this Dentistry question?

The best answer is A, Modified radical neck dissection. Radical neck dissection removes levels I to V together with the accessory nerve, internal jugular vein and sternocleidomastoid.

Why is "Extended radical neck dissection" not the answer?

Extended radical dissection removes additional nodal groups or structures beyond the radical operation.

Why is "Radical neck dissection" not the answer?

Radical dissection sacrifices all three structures.

Why is "Supraomohyoid neck dissection" not the answer?

Supraomohyoid dissection clears only levels I to III.

What concept does this question test?

It tests Oral medicine and oral cancer: modified radical neck dissection in Dentistry. A modified radical dissection preserves one or more of these, and the version preserving all three has the lowest morbidity.

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 Oral medicine and oral cancer: modified radical neck dissection?

Learn the dental formula, eruption ages and tooth structure once, as tables. Then use the flashcards and the other Dentistry 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.