PMC4901027_01
79-year-old woman with suspected recurrance of urothelial cancer. Transaxial images at the bladder level, CT scan, PET scan, and fusion. A. At one hour post injection, PET shows a "minus" inside the bladder. B. At two hours post injection, the tumoral lesion is clearly evidenced by greater (18F)-FDG uptake than the background.
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fig1
As shown in Fig. 1, the delayed acquisition made it possible to visualize and characterize as malignant the tissue inside the bladder.
PMC4901027_02
66-year-old woman previously treated for cervical cancer, with suspected recurrence. Sagittal images at the bladder level, CT scan, PET scan, fusion, and Maximum Intensity Projection (MIP). A. At one hour post injection, PET shows an abnormal (18F)-FDG close to the bladder. B. At two hours post injection, the kinetics of the abnormal uptake make it possible to characterize the lesion.
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fig2
Delayed acquisition, as shown in Fig. 2, made it possible to characterize the abnormal pelvic finding near the bladder as pathological: the activity of the lesion increased over time, while the urinary activity decreased (Table).