Diagnosis and spontaneous healing of asymptomatic renal allograft extra-renal pseudo-aneurysm:A case report  

作　　者：Rui-Fang Xu En-Hui He Zhan-Xiong Yi Li Li Jun Lin Lin-Xue Qian 

机构地区：[1]Department of Ultrasound,Beijing Friendship Hospital,Capital Medical University,Beijing 100050,China [2]Department of Urology,Beijing Friendship Hospital,Capital Medical University,Beijing 100050,China

出　　处：《World Journal of Clinical Cases》2021年第16期3943-3950,共8页世界临床病例杂志

基　　金：the Funding from Beijing Municipal Administration of Hospitals’Ascent Plan,No.DFL 20180102;and the Capital's Funds for Health Improvement and Research,No.2020-4-20211.

摘　　要：BACKGROUND Transplant renal artery stenosis is a relatively frequent vascular complication after transplantation.However,extra-renal pseudo-aneurysms(EPSAs)are rare after transplantation;they can be life-threatening and usually need open surgical repair.We discuss the diagnosis and spontaneous healing of an asymptomatic renal allograft EPSA caused by renal artery anastomotic stenosis,which was diagnosed in a timely manner and managed by conservative treatments.CASE SUMMARY We present a 37-year-old male patient diagnosed with a renal allograft EPSA caused by renal artery anastomotic stenosis due to multiple atherosclerotic plaques with ultrasonographic examination 6 mo post transplantation.The stenosis rate of 90%and the EPSA were verified by computed tomography angiography.The diagnosis was further confirmed with digital subtraction angiography.Percutaneous transluminal angiography was conducted,and a metallic stent was successfully implanted at the stenosed site of the main renal artery trunk.No further intervention for the EPSA was undertaken due to the difficulty of stenting and the risk of bleeding;regular ultrasonographic follow-ups were recommended.The stenosis was significantly relieved immediately after stent implantation and the EPSA was healed spontaneously by completely filling with hypo-echoic thrombosis 8 mo after stenting.CONCLUSION Ultrasonography combined with a high-frequency linear probe can detect vascular complications post renal transplantation at an early stage and improve prognosis.

关 键 词：Renal transplantation Renal artery stenosis PSEUDO-ANEURYSM ULTRASONOGRAPHY Vascular complications Case report 

分 类 号：R699.2[医药卫生—泌尿科学]