Osteoblastoma: Radiographic Features
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Osteoblastoma: Radiographic Features

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Questions and Answers

What is a distinguishing feature of osteoblastomas compared to osteoid osteomas?

  • Presence of internal calcification and rapid increase in size
  • Smaller size and predominantly lytic lesions
  • Secondary aneurysmal bone cyst-like changes and surrounding sclerosis
  • Larger size and more frequent axial skeleton involvement (correct)
  • What is a common radiographic feature of osteoblastomas?

  • Small size and absence of soft tissue mass
  • Presence of an associated soft tissue mass with no internal calcification
  • Predominantly sclerotic lesions with internal calcification
  • Predominantly lytic lesions with a rim of reactive sclerosis (correct)
  • What imaging modality is better for appreciating internal matrix mineralization in osteoblastomas?

  • CT (correct)
  • MRI
  • Nuclear medicine
  • Plain radiograph
  • What is a characteristic MRI feature of osteoblastomas?

    <p>High signal in surrounding bone marrow and soft tissues due to the 'flare phenomenon'</p> Signup and view all the answers

    What is a typical finding in nuclear medicine imaging for osteoblastomas?

    <p>Intense uptake, typical in all lesions exhibiting increased bone turnover</p> Signup and view all the answers

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