Figure 3: A 45/male with HL, MC, post 3 cycles chemotherapy, iPET was given DS 4. However, as the scan showed disease regression, the same treatment regimen was continued and EOT PET-CT showed disease progression with DS 5B (new lesions in pelvic bones). In this case, DS at iPET would have aided in prior escalation of treatment. PET: Positron emission tomography, EOT: End of treatment, CT: Computed tomography, HL: Hodgkin's lymphoma, MC: Mixed cellularity, DS: Deauville score