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CT (A), Na18F PET (B), Na18F PET/CT (C) and, at same level, CT (D), 18F-DCFPyL PET (E), and 18F-DCFPyL PET/CT (F) axial images of patient with widely metastatic PCa. Both modalities show subtle sclerotic lesion in right clavicle (arrowheads), but only Na18F shows associated intense uptake compatible with site of PCa. Most lesions with Na18F uptake that lacked 18F-DCFPyL uptake were sclerotic.
