Figure 5.

MIP image of an 84-year-old female with DLBCL on chemotherapy. PET/CT was performed at an outside institution after completion of treatment. The initial report indicated diffuse bone marrow uptake suspicious for lymphomatous involvement (stage IV). Second-opinion review at our institution described the diffuse bone marrow uptake as reactive to endogenous and/or exogenous stimulation. Therefore, the PET/CT was reported as “no evidence of disease,” concordant with the bone marrow biopsy and the multidisciplinary staging as “complete remission.”