PRIMARY OBJECTIVES:
I. To evaluate fluorine F 18 DCFPyL (18F-DCFPyL) PET/CT for detection of recurrent prostate cancer after initial therapy in patients with elevated prostate-specific antigen (PSA).
OUTLINE:
Participants receive fluorine F 18 DCFPyL intravenously (IV). After 60-120 minutes, participants undergo whole body PET/CT. Immediately after the first scan, participants may undergo a second PET/CT without receiving fluorine F 18 DCFPyL.
After completion of study, participants are followed up at 24-72 hours.