Joints: pigmented villonodular synovitis: practice question

A Orthopaedics 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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Orthopaedics · Joints: pigmented villonodular synovitis

Sample item

A 30-year-old has a chronic swollen knee with recurrent blood-stained aspirate. MRI shows low signal blooming areas of synovium. What is the diagnosis?

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

The answer and the reasoning

C. Pigmented villonodular synovitis

Pigmented villonodular synovitis is a proliferative synovial disorder with haemosiderin deposition, causing recurrent haemorrhagic effusions. MRI shows blooming of haemosiderin on gradient-echo sequences, and treatment is synovectomy.

Option by option

  • A. Haemophilic arthropathy

    Haemophilia has a bleeding disorder history.

  • B. Rheumatoid arthritis

    Rheumatoid arthritis is polyarticular.

  • C. Pigmented villonodular synovitis (correct)

    Correct. Recurrent bloody effusion with haemosiderin on MRI indicates PVNS.

  • D. Synovial chondromatosis

    Synovial chondromatosis has cartilaginous loose bodies.

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 Orthopaedics questions

Questions about this Orthopaedics question

What is the answer to this Orthopaedics question?

The best answer is C, Pigmented villonodular synovitis. Pigmented villonodular synovitis is a proliferative synovial disorder with haemosiderin deposition, causing recurrent haemorrhagic effusions.

Why is "Haemophilic arthropathy" not the answer?

Haemophilia has a bleeding disorder history.

Why is "Rheumatoid arthritis" not the answer?

Rheumatoid arthritis is polyarticular.

Why is "Synovial chondromatosis" not the answer?

Synovial chondromatosis has cartilaginous loose bodies.

What concept does this question test?

It tests Joints: pigmented villonodular synovitis in Orthopaedics. MRI shows blooming of haemosiderin on gradient-echo sequences, and treatment is synovectomy.

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 Joints: pigmented villonodular synovitis?

Pair each fracture with its classic complication and nerve injured. Then use the flashcards and the other Orthopaedics 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.