Neuroimaging: retinoblastoma: practice question

A Radiology 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.

Try it

Radiology · Neuroimaging: retinoblastoma

Sample item

A 2-year-old has leukocoria. Which imaging finding best separates retinoblastoma from Coats disease?

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

The answer and the reasoning

C. Intraocular calcification within the mass

Calcification within an intraocular mass on ultrasound or CT is the hallmark of retinoblastoma, while MRI is preferred to avoid radiation, especially in the hereditary form. Coats disease shows exudate and detachment without calcification. A small globe with a stalk indicates persistent fetal vasculature.

Option by option

  • A. A small globe with a retrolental stalk

    A small globe with a retrolental stalk indicates persistent fetal vasculature.

  • B. Subretinal exudate with retinal detachment

    Subretinal exudate and detachment are features of Coats disease.

  • C. Intraocular calcification within the mass (correct)

    Correct. Calcification in the mass is typical for retinoblastoma and absent in Coats.

  • D. Peripheral retinal neovascularisation in a premature infant

    Neovascularisation in a premature infant indicates retinopathy of prematurity.

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 Radiology questions

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is C, Intraocular calcification within the mass. Calcification within an intraocular mass on ultrasound or CT is the hallmark of retinoblastoma, while MRI is preferred to avoid radiation, especially in the hereditary form.

Why is "A small globe with a retrolental stalk" not the answer?

A small globe with a retrolental stalk indicates persistent fetal vasculature.

Why is "Subretinal exudate with retinal detachment" not the answer?

Subretinal exudate and detachment are features of Coats disease.

Why is "Peripheral retinal neovascularisation in a premature infant" not the answer?

Neovascularisation in a premature infant indicates retinopathy of prematurity.

What concept does this question test?

It tests Neuroimaging: retinoblastoma in Radiology. Coats disease shows exudate and detachment without calcification. A small globe with a stalk indicates persistent fetal vasculature.

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 Neuroimaging: retinoblastoma?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology 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.