(A) Probability of overall survival after autologous stem cell transplantation (Auto-SCT) according to the ¹⁸F-fluoro-2-deoxy-D-glucose positron emission tomographic/computed tomographic (FDG PET/CT) status at transplantation. (B) Probability of progression-free survival after Auto-SCT according to the FDG PET/CT status at transplantation.