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Liver metastases discovered during high-dose excretory urography.

Liver metastases were discovered in 4 adults during high-dose excretory urography with upper abdominal tomograms. Previous reports in the English literature have noted incidental discovery of hepatic cysts or abscesses during urography, but no documented cases of liver metastases were found. All metastases were visualized as round, lucent, hepatic filling defects during total body opacification. Radiologists performing high dose excretory urography with tomography should routinely scrutinize the hepatogram, because metastases, cysts, or abscesses may be visualized. Final diagnosis of these masses usually depends on additional diagnostic modalities.