Patients treated by radical prostatectomy (RP) for localized prostate cancer (PCa) may experience biochemical recurrence (BCR) in approximately 30% of cases. Recently, advances in imaging modalities and in particular Positron-Emission Tomography with computed tomography (PET/CT) imaging allow for better detection and characterization of lesions outside the prostatic bed at recurrence. Thus, treatment at BCR can be significantly improved by a tailored strategy based on new generation imaging. A more precise and accurate staging of the disease at recurrence paves the way to more appropriate treatment, potentially translating into better survival outcomes of these patients. This review therefore highlights the interest of PET/CT at the time of BCR, its superiority over standard imaging in terms of staging, and its impact on guiding the different therapeutic possibilities depending on the site, number, and volumes of recurrence. Indeed, we will discuss below about different strategies and their indications: salvage radiotherapy of the prostate bed, systemic therapies, stereotactic body radiotherapy and others therapeutical strategies. The various innovative approaches based on PET/CT implementation are partly underway within protocol trials to prove their benefits on clinically meaningful endpoints. © 2022 Elsevier Masson SAS. All rights reserved., Competing Interests: Disclosure of interest A. Ruffion, M. Lasserre, P. Sargos, G. Fiard, E. Barret and J.-B. Beauval have no competing interest to declare regarding this article. C. Dariane declares competing interest by participating in clinical trials (as co-investigator, non-principal experimenter, or collaborator) for Janssen and Bayer; receiving compensation for advisory consultancies from Janssen, Bayer, Astellas; being invited to conference as a speaker by Janssen and being invited to congresses with paid expenses by Bayer. M. Rouprêt de declares competing interest by participating in clinical trials (as principal investigator, coordinator, or principal experimenter) for Roche, Janssen, AstraZeneca and by receiving compensation for advisory consultancies from Astellas, Ferring, Roche, Janssen, AstraZeneca, Bayer and Ipsen. G. Ploussard declares competing interest by participating in clinical trials (as principal investigator, coordinator, or principal experimenter) for Ferring, Janssen, Ipsen, AstraZeneca, Pfizer, Bayer; by participating in clinical trials (as co-investigator, non-principal experimenter, or collaborator) for Ferring, Janssen, Ipsen, AstraZeneca, Pfizer, Bayer; receiving compensation for advisory consultancies from Ferring, Janssen, Ipsen, AstraZeneca, Pfizer, Bayer, Astellas, Intuitive, Thermo Fisher; being invited to conference as a speaker by Ferring, Janssen, Ipsen, AstraZeneca, Pfizer, Bayer, Astellas, Intuitive, Thermo Fisher. M. Gauthé declares competing interest by participating in clinical trials (as principal investigator, coordinator, or principal experimenter) for Curium Pharma, ABX Biochemical compounds, Endocyte/Novartis; receiving compensation for advisory consultancies from Curium Pharma; being invited to conference as a speaker by Novartis, Astellas; being invited to congresses with paid expenses by Curium Pharma, ABX Biochemical compounds, Endocyte/Novartis. G. Fromont declares competing interest by being invited as a speaker to conference by AstraZeneca and Astellas. R. Mathieu declares competing interest by receiving compensation for advisory consultancies from Bayer, Astellas, Janssen and by being invited as a speaker by Bayer, Astellas and Janssen. G. Roubaud declares competing interest by participating in clinical trials (as principal investigator, coordinator, or principal experimenter) for Bayer, Janssen, AAA, Novartis, Astellas, MSD, AstraZeneca; by receiving compensation for advisory consultancies from Merck and AstraZeneca; by being invited as a speaker to conferences by Jansses, AAA, Novartis, Astellas, AstraZeneca, Merck and by being invited to congresses with paid expenses by Astellas, Janssen and AstraZeneca. L. Brureau, G. Créhange, R. Renard-Penna did not disclose their conflict of interest., (Copyright © 2022 Elsevier Masson SAS. Tous droits réservés.)