Severe Renal Vein Stenosis of a Kidney Transplant with Beneficial Clinical Course after Successful Percutaneous Stenting

A 51‐year‐old renal transplant recipient presented with marked renal function deterioration 13 months after renal transplantation. After exclusion of ureteral obstruction, transplant artery stenosis and acute rejection, the diagnosis of a severe renal vein stenosis was made by an MR scan. After angiographic confirmation of the stenosis, treatment was attempted with percutaneous stent angioplasty. The long‐term clinical course was favorable, with marked improvement in renal function. Transplant renal vein stenosis is a rare, but potentially curable, cause of renal allograft functional deterioration. Marked functional deterioration of this kidney transplant was reversed by percutaneous stent angioplasty, with marked improvement in kidney function and long‐term survival.