[Correlation of computer tomographic, kidney vasographic and histological study results in solid kidney tumors]

Computertomography evaluates renal expansion precisely. In 105 patients differential diagnosis by means of computertomography was 95% accurate. In 93% of the cases it agreed with renovasographic and histological findings. It was possible to demonstrate or exclude the intrusion of a tumour into the renal vein in 61% of cases of tumour of the left kidney and in 55% of growths on the right side. The computertomographic evaluation of the vena cava inferior was confirmed by the histological findings in 71% and 65% of the cases, respectively. It was possible to exclude lymphogenous metastasis in 89% of the cases. In 4% computertomography gave falsely positive findings. In so far as computertomographic examination can give an unambiguous evaluation of a renal growth and a certain proof or disproof of the intrusion of a tumour into the venous system is made, preoperative renovasography can be dispensed with. Information on the operability of the tumour should be supplemented by clarification of lymphogenous and distant metastasis.