[Secondary thrombosis of the renal veins in thrombosis of the inferior vena cava].

On the occasion of the diagnosis secondary thrombosis of both renal veins made during one's life, resulting from the progressive thrombosis of v.cava inferior, the attention is drawn on that possibility in case of nephrotic syndrome with edema of the lower limbs, showing asymmetry to a certain extent. Diagnostic precision is recommended in such cases, looking for alterations in venous urography, INF or dynamic chamber scintigraphy with 131I-hippuran, perfusion angioscintigraphy with 99Tc-pertechnetate and in computer tomography.