Nuclear medicine: PET indication: 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.

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Radiology · Nuclear medicine: PET indication

Sample item

FDG-PET/CT is of particular value in which of the following situations?

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

The answer and the reasoning

D. Staging and response assessment in lymphoma

FDG is a glucose analogue taken up by metabolically active cells, so it is useful in lymphoma, lung cancer, colorectal cancer, melanoma and other tumours. It is not useful for benign cysts or bone density. Physiological uptake occurs in the brain, heart, bladder and kidneys.

Option by option

  • A. Evaluation of a simple renal cyst

    A simple cyst is characterised by ultrasound.

  • B. Diagnosis of osteoporosis

    Osteoporosis is assessed by DEXA.

  • C. Assessment of bowel gas

    Bowel gas has no relevance to PET.

  • D. Staging and response assessment in lymphoma (correct)

    Correct. FDG-PET is used for staging and response in lymphoma.

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 Radiology question

What is the answer to this Radiology question?

The best answer is D, Staging and response assessment in lymphoma. FDG is a glucose analogue taken up by metabolically active cells, so it is useful in lymphoma, lung cancer, colorectal cancer, melanoma and other tumours.

Why is "Evaluation of a simple renal cyst" not the answer?

A simple cyst is characterised by ultrasound.

Why is "Diagnosis of osteoporosis" not the answer?

Osteoporosis is assessed by DEXA.

Why is "Assessment of bowel gas" not the answer?

Bowel gas has no relevance to PET.

What concept does this question test?

It tests Nuclear medicine: PET indication in Radiology. It is not useful for benign cysts or bone density. Physiological uptake occurs in the brain, heart, bladder and kidneys.

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 Nuclear medicine: PET indication?

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.