Figure 2.

Partial response in diffuse large B‐cell lymphoma. A 78‐year‐old man with diffuse large B‐cell lymphoma diagnosed 3 years and six chemotherapy regimens before study entry. (A): Baseline computed tomography (CT) scan showing red arrow pointing to bulky left axillary mass. (B): End of cycle 2 positron emission tomography (PET) scan showing persistent left axillary glucose uptake in areas of lymphoma. (C): End of cycle 4 PET scan showing complete metabolic response. (D, E): End of cycle 14 PET and CT scans with red arrows pointing to ongoing complete metabolic response and nonpathologic residual nodes, respectively. After a gradual 90% decline in measured disease, at month 17 the subject's disease progressed distantly in the thigh, and study therapy was stopped.