Imaging Modalities for Osteoarthritis Quiz
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Questions and Answers

What is the main difference between rheumatoid arthritis (RA) and osteoarthritis (OA) on imaging?

  • Presence of bone erosion in RA and mal-alignment in OA (correct)
  • Soft tissue swelling in RA and bone erosion in OA
  • Mal-alignment due to ligament/tendon disruption in RA and uniform asymmetric joint space loss in OA
  • Presence of osteopenia in RA and soft tissue swelling in OA

    • Which imaging feature is characteristic of psoriatic arthritis?

  • Bony bridging (ankylosis) and uniform joint space narrowing
  • Mixed erosive and productive features (correct)
  • Punched-out lytic lesions and overhanging sclerotic margins
  • Soft tissue swelling and ulnar deviation

    • What distinguishes gout from other arthritic conditions on imaging?

  • Presence of tophi and punched-out lytic lesions (correct)
  • Erosions with overhanging sclerotic margins
  • Uniform joint space narrowing next to joints
  • Aggressive erosions with soft tissue swelling

    • Which condition is characterized by the presence of syndesmophytes in the spine?

    <p>Ankylosing spondylitis</p> Signup and view all the answers

    What imaging feature can help diagnose rheumatoid arthritis (RA) earlier?

    <p>Erosions, synovitis, and osteitis shown by ultrasound (U/s) and MRI</p> Signup and view all the answers

    Which type of arthritis presents with overhanging sclerotic margins on imaging?

    <p>Gout</p> Signup and view all the answers

    What distinguishes septic arthritis from other forms of arthritis?

    <p>'Punched-out' lytic lesions on radiographs</p> Signup and view all the answers

    'Bamboo spine' is a characteristic finding in which condition?

    <p>'Ankylosing spondylitis'</p> Signup and view all the answers

    'Calcium pyrophosphate dihydrate deposition disease' is commonly known as:

    <p>'Pseudogout'</p> Signup and view all the answers

    'Triad of pseudogout, chondrocalcinosis, and pyrophosphate arthropathy' is associated with which condition?

    <p>'CPPD / Pseudogout'</p> Signup and view all the answers

    'Erosive similar to RA but involve DIP joints; MCPs normal' describes which condition?

    <p>'Psoriatic arthritis'</p> Signup and view all the answers

    What is the best imaging modality for looking for bone pathology in OA?

    <p>X-rays</p> Signup and view all the answers

    Which of the following is NOT a classic x-ray finding for OA?

    <p>Soft tissue effusion</p> Signup and view all the answers

    What does ulnar deviation refer to in the context of OA?

    <p>Bones bending toward the ulnar side</p> Signup and view all the answers

    Which imaging modality is best for looking at synovium in OA?

    <p>Ultrasound</p> Signup and view all the answers

    What is a secondary cause of OA related to metabolic issues?

    <p>Hemophilia</p> Signup and view all the answers

    Which of the following is characteristic of inflammatory arthritis on imaging?

    <p>Effusion where synovium meets bone</p> Signup and view all the answers

    What type of bone formation is associated with ankylosing spondylitis on imaging?

    <p>'Ankylosis'</p> Signup and view all the answers

    What feature differentiates inflammatory arthritis from degenerative arthritis on imaging?

    <p>'Lumpy-bumpy' swelling</p> Signup and view all the answers

    'Subchondral cysts' are a classic x-ray finding in which joint affected by OA?

    <p>Hip</p> Signup and view all the answers

    'Buttressing' as seen on imaging is characteristic of OA in which joint?

    <p>'Hips'</p> Signup and view all the answers

    'Acetabular cysts' are a classic x-ray finding in OA affecting which joint?

    <p>'Hips'</p> Signup and view all the answers

    Which of the following imaging modalities is BEST for evaluating surrounding soft tissues in OA?

    <p>Ultrasound</p> Signup and view all the answers

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