The role of PET/CT with Choline in the restaging of prostatic disease is now universally recognized, and its use has become routine in numerous centers in Italy and abroad. The indication for the test is provided exclusively by an increase in PSA. It was interesting to understand whether these prognostic factors have an influence on the probability of detecting disease by PET with Choline to identify patients who have a greater probability of benefiting from the use of this method with the possibility of identifying the disease in earlier stages.

Inclusion Criteria:

• patients operated with radical prostatectomy
• patients that present biochemical recurrence of the disease;

Exclusion Criteria:

• patients <18 years

The study is retrospective observational and the results of the choline PET diagnostic tests of 68 patients performed at our center from 2005 to 2013 were reviewed.