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Figure 3a. No increased FDG uptake at early evaluation in a 21-year-old man with Hodgkin disease who had undergone two cycles of chemotherapy. (a) Chest CT scan shows residual mediastinal lymphadenopathies (arrows). (b) Corresponding axial PET scan shows no increased uptake at the site of the mediastinal masses (arrows). Note, however, the uptake in the spine and sternum (arrowheads) due to granulocyte colony-stimulating factor (G-CSF) therapy. The patient remains disease free after completing chemotherapy.
