Received: 21 February 2021
Revised: 16 April 2021
Accepted: 30 April 2021
First Online: 19 May 2021
Compliance with ethical standards
: SM received speaker honoraria from General Electric and Eli-Lilly; GF received honoraria as scientific advisory board member form Ipsen, Sanofi, BMS, Pfizer, Novartis, MSD, Janssen. The remaining authors do not have any conflict of interest to declare.
: The study was performed in accordance with the Declaration of Helsinki. The local ethical committees approved the retrospective multicentric study. All patients signed a written informed consent form at the time of PET/CT, encompassing the use of anonymized data for retrospective research purposes.