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FIGURE 1. (A) A 70-y-old male patient who presented initially with NHL of right neck. PET was performed for staging and revealed additional involvement of left cervical and mediastinal lymph nodes as well as right lung (arrows). This finding resulted in upstaging from stage I to stage II and change in treatment from irradiation to medical treatment. (B) A 27-y-old female patient with HD. After treatment with chemotherapy, she had cervical recurrence 2 y later. Repeated chemotherapy resulted in remission. Five months later, CT scan revealed multiple equivocal 8- to 10-mm lymph nodes in right axilla. PET revealed right axillary lymphadenopathy, right supra- and infraclavicular and left infraclavicular nodes (arrows), and retroperitoneal and pelvic involvement. As result of PET, patient underwent salvage chemotherapy followed by allogenic bone marrow transplantation.
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