Staging of the abdominal extent of renal carcinoma by computed tomography.

To assess the accuracy of CT in diagnosis and staging of renal cell carcinoma, the surgical findings and CT scans were compared retrospectively in 21 patients. In 17 cases diagnosed as renal cell carcinoma by CT criteria, 14 were verified at surgery and accurate staging information was given in 11. In four cases renal cell carcinoma was given as a differential diagnosis by CT and none had the tumour.