18F-FDG PET-CT versus MRI for detection of skeletal metastasis in Ewing sarcoma.
Sarah E BosmaD VriensH GelderblomM A J van de SandeP D S DijkstraJ L BloemPublished in: Skeletal radiology (2019)
Although no definite conclusions can be drawn from this small retrospective study, it shows that caution is needed when using 18F-FDG PET-CT for diagnosing skeletal metastases in Ewing sarcoma. Poor contrast between metastases and active hematopoietic bone marrow, chemotherapeutic treatment, and/or small size significantly decrease the diagnostic yield of 18F-FDG PET-CT, but not of MRI.