Facial trauma: orbital blowout fracture: 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 · Facial trauma: orbital blowout fracture

Sample item

After being hit by a tennis ball, a man has diplopia on upgaze, infraorbital numbness and enophthalmos. What is the likely injury?

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

The answer and the reasoning

C. Orbital floor blowout fracture with inferior rectus entrapment

A blow to the orbit raises intraorbital pressure and breaks the weak orbital floor, trapping the inferior rectus or fat, restricting upgaze. Infraorbital nerve numbness and enophthalmos result. CT confirms and surgery is needed for entrapment or large defects.

Option by option

  • A. Nasal bone fracture

    A nasal fracture causes deformity and epistaxis.

  • B. Mandibular fracture

    A mandibular fracture causes malocclusion.

  • C. Orbital floor blowout fracture with inferior rectus entrapment (correct)

    Correct. Orbital floor blowout fits the picture.

  • D. Zygomatic arch fracture

    A zygomatic arch fracture causes trismus.

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 C, Orbital floor blowout fracture with inferior rectus entrapment. A blow to the orbit raises intraorbital pressure and breaks the weak orbital floor, trapping the inferior rectus or fat, restricting upgaze.

Why is "Nasal bone fracture" not the answer?

A nasal fracture causes deformity and epistaxis.

Why is "Mandibular fracture" not the answer?

A mandibular fracture causes malocclusion.

Why is "Zygomatic arch fracture" not the answer?

A zygomatic arch fracture causes trismus.

What concept does this question test?

It tests Facial trauma: orbital blowout fracture in ENT. Infraorbital nerve numbness and enophthalmos result. CT confirms and surgery is needed for entrapment or large defects.

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 Facial trauma: orbital blowout fracture?

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.