TTP and OS estimates for patients by EOT PET and RT status. Shown are TTP for PET-NEG vs PET-POS (A) and for PET-NEG vs PET-POS with RT and PET-POS without RT (C); OS for PET-NEG vs PET-POS (B) and for PET-NEG vs PET-POS with RT and PET-POS without RT (D).