Papillary Urothelial Carcinoma of Urinary Bladder Identified on 18F-Fluciclovine PET/CT.

18F-fluciclovine is a radiolabeled synthetic amino acid recently approved by the Food and Drug Administration for evaluating recurrent prostate cancer. Upregulated amino acid transporters in prostate cancer cells result in elevated radiotracer uptake in sites of tumor recurrence. However, 18F-fluciclovine is not specific for prostate cancer.