Obstetric imaging: choroid plexus cyst: 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 · Obstetric imaging: choroid plexus cyst

Sample item

At the mid-trimester scan, a single small cyst is seen in the choroid plexus of a fetus with otherwise normal anatomy. How should this be managed?

AStart corticosteroidsBRegard it as a normal variant, and look carefully for other anomaliesCOffer immediate terminationDPerform fetal MRI for every case

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

The answer and the reasoning

B. Regard it as a normal variant, and look carefully for other anomalies

Isolated choroid plexus cysts are common, resolve by the third trimester and are usually insignificant. When seen with other structural anomalies or markers, there is concern for trisomy 18, and further assessment is needed. Reassurance after a detailed scan is appropriate.

Option by option

A. Start corticosteroids
Steroids have no role.
B. Regard it as a normal variant, and look carefully for other anomalies (correct)
Correct. An isolated cyst is a normal variant.
C. Offer immediate termination
Termination is not justified by an isolated cyst.
D. Perform fetal MRI for every case
MRI is not routinely required.

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.

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is B, Regard it as a normal variant, and look carefully for other anomalies. Isolated choroid plexus cysts are common, resolve by the third trimester and are usually insignificant.

Why is "Start corticosteroids" not the answer?

Steroids have no role.

Why is "Offer immediate termination" not the answer?

Termination is not justified by an isolated cyst.

Why is "Perform fetal MRI for every case" not the answer?

MRI is not routinely required.

What concept does this question test?

It tests Obstetric imaging: choroid plexus cyst in Radiology. When seen with other structural anomalies or markers, there is concern for trisomy 18, and further assessment is needed. Reassurance after a detailed scan is appropriate.

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 Obstetric imaging: choroid plexus cyst?

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.