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Fluorodeoxyglucose (FDG), labeled with F-18, is a glucose analog that accumulates in cells in proportion to the rate of glucose metabolism, and increased carbohydrate metabolism has been recognized as a feature of malignant cells versus normal cells. In addition, it permits the detection of metastases not discovered by bone scan. Although detection of the primary site of disease is usually accomplished well with conventional techniques, the performance of FDG positron emission tomography (PET) may be useful to determine metastases that are not clinically evident. The authors describe a case of early detection of distant metastases by FDG-PET in a young patient diagnosed with rhabdomyosarcoma of the hand.
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Arush et al. (2001) studied this question.
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