Gynaecological imaging: ovarian torsion: 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 · Gynaecological imaging: ovarian torsion

Sample item

A young woman has sudden severe lower abdominal pain and vomiting. Ultrasound shows an enlarged ovary with peripherally arranged follicles and a twisted vascular pedicle on the side of a 6 cm cyst. What is the diagnosis?

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

The answer and the reasoning

C. Ovarian torsion

Torsion of the ovarian pedicle causes venous congestion, so the ovary swells and its follicles are pushed to the periphery, with a whirlpool sign of the pedicle. Normal Doppler flow does not exclude torsion because of dual blood supply.

Option by option

  • A. Ruptured ectopic pregnancy

    A ruptured ectopic would show a positive pregnancy test and haemoperitoneum.

  • B. Acute pelvic inflammatory disease

    PID causes tubo-ovarian inflammation with fever, not a twisted pedicle.

  • C. Ovarian torsion (correct)

    Correct. An enlarged ovary with peripheral follicles and a twisted pedicle indicates torsion.

  • D. Appendicitis

    Appendicitis would show an inflamed appendix.

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 C, Ovarian torsion. Torsion of the ovarian pedicle causes venous congestion, so the ovary swells and its follicles are pushed to the periphery, with a whirlpool sign of the pedicle.

Why is "Ruptured ectopic pregnancy" not the answer?

A ruptured ectopic would show a positive pregnancy test and haemoperitoneum.

Why is "Acute pelvic inflammatory disease" not the answer?

PID causes tubo-ovarian inflammation with fever, not a twisted pedicle.

Why is "Appendicitis" not the answer?

Appendicitis would show an inflamed appendix.

What concept does this question test?

It tests Gynaecological imaging: ovarian torsion in Radiology. Normal Doppler flow does not exclude torsion because of dual blood supply.

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 Gynaecological imaging: ovarian torsion?

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.