Images:
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Case
Summary
Diagnosis: Parosteal Sarcoma
Clinical hints:
This is a relatively uncommon bone producing sarcoma,
typically forming an exophytic mass around the knee. It
attaches to the periosteum; a lucent line separates it from
bone. The prognosis is better than with osteogenic sarcoma.
Radiological Pearls:
- exophytic mass with tumor bone
- typically involves knee
- soft tissue component
- "lucent line" typical finding
Films were kindly provided by Dr. G. Cooke.
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