Retina: Coats disease: 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.

Try it

Ophthalmology · Retina: Coats disease

Sample item

A 7-year-old boy has unilateral leukocoria with massive yellow subretinal exudates and telangiectatic vessels, but no calcification. What is the diagnosis?

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

The answer and the reasoning

D. Coats disease

Coats disease is a unilateral idiopathic retinal telangiectasia with exudation, mostly in boys, treated with laser or cryotherapy. Absence of calcification differentiates it from retinoblastoma.

Option by option

  • A. Toxocariasis

    Toxocariasis shows a granuloma and inflammation.

  • B. Retinoblastoma

    Retinoblastoma shows calcification.

  • C. Persistent hyperplastic primary vitreous

    PHPV has microphthalmos and a retrolental stalk.

  • D. Coats disease (correct)

    Correct. Telangiectasia with massive exudate is typical.

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 Ophthalmology questions

Questions about this Ophthalmology question

What is the answer to this Ophthalmology question?

The best answer is D, Coats disease. Coats disease is a unilateral idiopathic retinal telangiectasia with exudation, mostly in boys, treated with laser or cryotherapy.

Why is "Toxocariasis" not the answer?

Toxocariasis shows a granuloma and inflammation.

Why is "Retinoblastoma" not the answer?

Retinoblastoma shows calcification.

Why is "Persistent hyperplastic primary vitreous" not the answer?

PHPV has microphthalmos and a retrolental stalk.

What concept does this question test?

It tests Retina: Coats disease in Ophthalmology. Absence of calcification differentiates it from retinoblastoma.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. 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 Retina: Coats disease?

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.