Acute kidney injury. Transplant kidney. History of obstruction. RENAL TRANSPLANT LOCATION: Left iliac fossa.PERITRANSPLANT TISSUES: There is a complex 12 cm collection with internal septation adjacent to the transplant kidney upper pole extending cephalad.KIDNEY: 10.6 cm in length. Increased renal parenchymal echogenicity. COLLECTING SYSTEM/URETER: Mild hydronephrosis.URINARY BLADDER: Not well visualized.VASCULAR DOPPLER DATA: Color and spectral Doppler were performed on inflow and outflow vessels of the transplant kidney. The velocities and resistive indices of the transplant renal artery are within normal limits. There is focal abnormal flow at the upper pole of the kidney, suggestive of a small AV fistula, of questionable clinical significance. The left iliac artery and vein are patent.OTHER: Prominent loop of colon noted adjacent to the kidney.
1. Mild hydronephrosis which appears unrelated to the fluid collection.. 2. Patent transplant renal artery with normal flow dynamics.3. 12 cm complex collection adjacent to the transplant kidney. This is incompletely evaluated by ultrasound and CT may be considered as clinically warranted.4. Focal abnormal flow at the upper pole of the kidney, suggestive of a small AV fistula, of questionable clinical significance.