Overview of the PET-evaluated cohort and management by PET2 results. (*) A PET3 scan was performed after treatment with R-CHOP in 1 patient. (†) Two patients originally classified as positive by International Harmonization Project (IHP) interpretation were later changed to negative after re-review by Deauville criteria (DX, D2), accounting for 2 of 4 patients who received RT in the PET-negative group. The remaining 2 patients switched to RT because of chemotherapy toxicity. (‡) The majority of patients (35 of 38) received 2 additional cycles of ABVD (AVD in 5 patients). The remaining patients declined further chemotherapy after 3 cycles (ABVD in 2 patients and R-CHOP in 1 patient). EOT, end of treatment.