Post-renal Transplant Pseudoaneurysm With Renal Artery Stenosis: A Rare and Life-Threatening Complication

This case report follows a 64-year-old male patient who underwent deceased-donor renal transplantation for end-stage renal disease secondary to chronic hypertension and type 2 diabetes mellitus. On presentation, he displayed signs of volume overload, significant weight and blood pressure increases, and minimal urine output. Initial ultrasound revealed elevated peak systolic velocity at the transplant kidney anastomotic site, suggesting post-transplant renal artery stenosis along with a larger-than-expected iliac artery concerning for pseudoaneurysm, later confirmed with subsequent CT scan findings. This case outlines the rare nature of pseudoaneurysm post-renal transplant and emphasizes the efficacy of CT as a tool for diagnosis when ultrasound findings are equivocal.