Selective renal venography in patients with primary renal disease and the nephrotic syndrome.

Fifteen patients with primary renal disease and renal vein thrombosis who presented with the nephrotic syndrome were investigated venographically. In 46% of the patients the cavogram was normal. Selective renal venography is necessary in such patients because the course of patients with renal vein thrombosis and membranous glomerulonephritis is identical to that of patients with membranous glomerulonephritis alone. Eighty per cent of our patients had membranous glomerulonephritis; renal vein thrombosis is now thought to be secondary to this disease.