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Appearance of extraosseous pelvic Ewing sarcoma on triphasic bone scan
Marianne Muckle1, Elham Habibi, Birgit Simon
1From the *Departments of Nuclear Medicine, †Radiology, and ‡Internal Medicine, Oncology, University Hospital Bonn, Bonn, Germany.
Clinical Nuclear Medicine
|February 26, 2014
Summary
Triphasic bone scintigraphy is a valuable tool for evaluating extraosseous Ewing sarcoma. This imaging technique effectively detected tracer uptake in the pelvic tumor, indicating potential bone involvement before chemotherapy.
Area of Science:
- Oncology
- Nuclear Medicine
- Radiology
Background:
- Extraosseous Ewing sarcoma is a rare malignancy.
- Accurate staging is crucial for treatment planning.
Observation:
- A 24-year-old male patient presented with pelvic extraosseous Ewing sarcoma.
- Triphasic bone scintigraphy was performed to assess for bone metastases and local infiltration prior to chemotherapy.
Findings:
- The triphasic bone scintigraphy demonstrated significant tracer uptake within the pelvic tumor across all three phases.
- This uptake pattern suggests active tumor metabolism and potential involvement of adjacent bone structures.
Implications:
- Bone scintigraphy can aid in the detection of bone involvement in extraosseous Ewing sarcoma.
- These findings may influence treatment strategies and prognosis.
