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F-18 FDG PET/CT findings in postradiation pelvic insufficiency fracture
Ali Salavati1, Vinil Shah, Zhen J Wang
1Department of Radiology, University of California San Francisco, San Francisco, CA 94143-0628, USA.
Abstract:
We retrospectively identified eight patients who underwent F-18 FDG PET/CT and had diagnostic findings of postradiation pelvic insufficiency fracture. The fractures had a median SUV(max) of 2.5 (range, 1.6 to 6.0) and were initially interpreted as possible metastases in six patients. A new bone lesion developing in the sacrum, pubic ramus, or acetabulum after radiation for pelvic malignancy is likely to be a postradiation pelvic insufficiency fracture, even if associated with increased FDG uptake at PET.
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