Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands. Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands; Department of Surgery, University Medical Center, Utrecht, the Netherlands. Department of Radiology, University Medical Center, Utrecht, the Netherlands. Department of Radiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands. Department of Medical Oncology, University Medical Center, Utrecht, the Netherlands. Department of Surgery, Catharina Hospital, Eindhoven, the Netherlands. Department of Radiology, Catharina Hospital, Eindhoven, the Netherlands. Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands. Department of Surgery, St Antonius Hospital Nieuwegein, University Medical Center Utrecht Cancer Center, Regional Academic Cancer Center Utrecht, the Netherlands. Department of Radiology and Nuclear Medicine, Cancer Center Amsterdam, Amsterdam UMC, VU University, Amsterdam, the Netherlands. Department of Radiology, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, the Netherlands. Electronic address: k.p.vanlienden@amc.nl.