Key result
18F-NaF PET/CT incidentally detects a rare iliofemoral tumor thrombus during pediatric osteosarcoma staging.
Why the study?
Tumor thrombus arising from osteosarcoma is rare and may be detected by 18F-NaF PET/CT during initial staging.
Case Report (n=1)
18F-NaF PET/CT can detect rare extraosseous findings like tumor thrombus in osteosarcoma, highlighting the importance of evaluating extraosseous uptake for management changes.
May prompt evaluation of extraosseous uptake on 18F-NaF PET/CT in osteosarcoma; hypothesis-generating and should not yet change practice.
Osteosarcoma is the most common bone sarcoma in adolescents and children. Tumor thrombus arising from osteosarcoma is rare. We describe the case of a 13-year-old girl with osteosarcoma of the right femur, in whom the F-NaF PET/CT was done for initial staging to look for skeletal metastases. The scan showed abnormal increased tracer uptake in the primary tumor and the right common femoral and external iliac vein representing a tumor thrombus. Our case emphasizes the importance of extraosseous findings on F-NaF PET/CT, which may result in important management changes.
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Verma et al. (2016) conducted a case report in Osteosarcoma (n=1). 18F-NaF PET/CT was evaluated on Detection of tumor thrombus. 18F-NaF PET/CT performed for initial staging in a 13-year-old girl with osteosarcoma incidentally detected a rare tumor thrombus in the right common femoral and external iliac vein.
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