Orbit: commonest orbital tumours: practice question

A Ophthalmology 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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Ophthalmology · Orbit: commonest orbital tumours

Sample item

Which pair gives the commonest primary orbital malignant tumour in children and the commonest benign tumour in adults?

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

The answer and the reasoning

C. Rhabdomyosarcoma and cavernous haemangioma

Rhabdomyosarcoma, usually embryonal type, presents with rapid proptosis in a child of about 7 years. Cavernous haemangioma is the commonest benign orbital tumour in adults and is intraconal. Treatment of rhabdomyosarcoma is chemoradiotherapy.

Option by option

  • A. Retinoblastoma and optic glioma

    Retinoblastoma is intraocular, and optic glioma is not the commonest adult tumour.

  • B. Lymphoma and dermoid cyst

    Dermoid cysts are common in children, but are not malignant.

  • C. Rhabdomyosarcoma and cavernous haemangioma (correct)

    Correct. These are the standard answers.

  • D. Neuroblastoma and meningioma

    Neuroblastoma is metastatic rather than primary orbital.

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 Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is C, Rhabdomyosarcoma and cavernous haemangioma. Rhabdomyosarcoma, usually embryonal type, presents with rapid proptosis in a child of about 7 years.

Why is "Retinoblastoma and optic glioma" not the answer?

Retinoblastoma is intraocular, and optic glioma is not the commonest adult tumour.

Why is "Lymphoma and dermoid cyst" not the answer?

Dermoid cysts are common in children, but are not malignant.

Why is "Neuroblastoma and meningioma" not the answer?

Neuroblastoma is metastatic rather than primary orbital.

What concept does this question test?

It tests Orbit: commonest orbital tumours in Ophthalmology. Cavernous haemangioma is the commonest benign orbital tumour in adults and is intraconal. Treatment of rhabdomyosarcoma is chemoradiotherapy.

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 Orbit: commonest orbital tumours?

Group the red eye by what to examine and what the pupil does. Then use the flashcards and the other Ophthalmology 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.