[Kidney varices: an unusual location].

The authors report the case of a 40-year-old woman who presented with very large right renal varices. Computed tomography and arteriography showed that these varices were situated on the convex surface of the kidney, in front of its anterior surface, and drained venous blood derived from the renal parenchyma. These varices were probably secondary to undiagnosed renal vein thrombosis.