Abstract
The relative value of radiological examinations in the diagnosis of renal and suprarenal tumours is considered. The protein clinical manifestations of renal carcinoma and their sometimes indistinguishable clinical and pyelographic differentiation from cysts may be clarified by arteriography, which also helps in the diagnosis of renal masses in general, based on experience of 146 selective renal arteriograms. Arteriography, however, has a limited value in the case of most suprarenal tumours which are usually best demonstrated by perirenal oxygen insufflation techniques and confirmed by biochemical methods.