AN ANGIOGRAPHIC SIGN DEMONSTRATING EXTENSION OF RENAL CARCINOMA INTO THE RENAL VEIN AND VENA CAVA

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Abstract
Six cases of renal carcinoma with massive extension into the renal vein and inferior vena cava are reported. In 4 cases the right kidney was involved and in 2, the left.A striated vascular pattern was noted on renal angiography in 5 of the 6 cases. The pattern was particularly well seen when epinephrine had been used as a part of the angiographic study. It is believed that this striated vessel pattern represents vascular supply of tumor extension confined to the renal vein and vena cava.