Oral pathology: adenomatoid odontogenic tumour: 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 pathology: adenomatoid odontogenic tumour

Sample item

A teenage girl has a well-defined radiolucency around an unerupted maxillary canine, extending along the root and containing tiny radiopaque flecks. What is the most likely diagnosis?

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

The answer and the reasoning

C. Adenomatoid odontogenic tumour

The adenomatoid odontogenic tumour typically occurs in young females in the anterior maxilla, often with an impacted canine. Fine calcifications and extension beyond the cementoenamel junction along the root favour it over a dentigerous cyst.

Option by option

  • A. Dentigerous cyst

    A dentigerous cyst usually lacks flecks and stays at the cementoenamel junction.

  • B. Central giant cell granuloma

    Giant cell granuloma is multilocular and more common in the anterior mandible.

  • C. Adenomatoid odontogenic tumour (correct)

    Correct. Site, age and radiopaque flecks fit the AOT.

  • D. Periapical cyst

    A periapical cyst sits at the apex of a non-vital tooth.

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 C, Adenomatoid odontogenic tumour. The adenomatoid odontogenic tumour typically occurs in young females in the anterior maxilla, often with an impacted canine.

Why is "Dentigerous cyst" not the answer?

A dentigerous cyst usually lacks flecks and stays at the cementoenamel junction.

Why is "Central giant cell granuloma" not the answer?

Giant cell granuloma is multilocular and more common in the anterior mandible.

Why is "Periapical cyst" not the answer?

A periapical cyst sits at the apex of a non-vital tooth.

What concept does this question test?

It tests Oral pathology: adenomatoid odontogenic tumour in Dentistry. Fine calcifications and extension beyond the cementoenamel junction along the root favour it over a dentigerous cyst.

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 pathology: adenomatoid odontogenic tumour?

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.