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Angiogram of the renal transplant
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F1
In work up for the cause of acute kidney injury in transplanted kidney, color Doppler ultrasonography reported positive for a significant renal artery stenosis of the transplanted kidney at the anastomosis site of the donated renal transplant artery to the right internal iliac artery of the recipient (Fig 1).
Antegrade pyelography
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F2
Following percutaneous nephrostomy and antegrade pyelography (Fig 2), initiation of corticosteroid therapy as well as 500 mg prednisolone daily, and rituximab every week for four consecutive weeks, complete resolution was achieved.
Resolution of the uretero-pelvic stenosis in the transplanted kidney
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F3
On July 4, 2015, nephrostomography of the transplanted kidney revealed resolution of the uretero-pelvic stenosis in the transplanted kidney (Fig 3) and no more hydronephrosis, thus, nephrostomy catheter was removed.