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Figure 4b. Residual increased FDG uptake at early evaluation in a 33-year-old woman with Hodgkin disease who had undergone one cycle of chemotherapy. (a) Axial CT scan shows a large right paramediastinal lesion. (b) Coronal PET scan shows increased FDG uptake (arrow) corresponding to the lesion seen in a. Note also the physiologic uptake in the myocardium and kidneys. Although the patient underwent intensive treatment, she had a poor prognosis.