Intense Concentration of Technetium-99m Pyrophosphate in the Kidneys of Children Treated with Chemotherapeutic Drugs for Malignant Disease

Abstract
Seventeen of 265 bone scans in children receiving chemotherapy for various malignant diseases exhibited intense renal parenchymal uptake of radioactivity during bone imaging. In a retrospective analysis, it was learned that uptake occurred when imaging was performed within 1 wk of cancer chemotherapy. It was encountered after injection of cyclophosphamide (P < 0.05), vincristine (P < 0.01) and doxorubicin (P < 0.02). None of the 265 scans showed intense renal uptake unless the patient received chemotherapeutic drugs in the preceding week. This finding did not seem to result from altered renal function, and the exact cause was not defined.

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