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Questions and Answers
What is a distinguishing feature of osteoblastomas compared to osteoid osteomas?
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?
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?
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?
What is a characteristic MRI feature of osteoblastomas?
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What is a typical finding in nuclear medicine imaging for osteoblastomas?
What is a typical finding in nuclear medicine imaging for osteoblastomas?
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