Bone cysts and cyst-like conditions

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Revision as of 18:52, 2 September 2024 by Nikolas (talk | contribs) (Created page with "<section begin="orthopaedics" />* Bone cysts and cyst-like conditions are not true tumours ** MRI is best for diagnosis ** Simple bone cyst *** = serous fluid-filled lesion *** Usually found in young people ** Aneurysmal bone cyst (ABC) *** Shows multiple fluid lines (niveau) on MRI or CT *** Because it contains multiple liquids of different density ** Non-ossifying fibroma *** Due to dysfunctional ossification *** Located in metaphysis of long bones of the lower extremi...")
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  • Bone cysts and cyst-like conditions are not true tumours
    • MRI is best for diagnosis
    • Simple bone cyst
      • = serous fluid-filled lesion
      • Usually found in young people
    • Aneurysmal bone cyst (ABC)
      • Shows multiple fluid lines (niveau) on MRI or CT
      • Because it contains multiple liquids of different density
    • Non-ossifying fibroma
      • Due to dysfunctional ossification
      • Located in metaphysis of long bones of the lower extremity
      • Has such a characteristic x-ray appearance that MRI or biopsy is not necessary
        • “Bubbly” lytic lesion with sclerotic outline on x-ray