Renal pseudoaneurysm after calculous pyelonephritis

Introduction

Renal pseudoaneurysms reportedly occur after partial nephrectomy, renal trauma, or percutaneous procedures. Renal pseudoaneurysms can also occur after renal inflammation; however, such cases are rare and seldom reported.

Case presentation

A 53-year-old man presented to our emergency room with a 3-day history of fever and right back pain. A blood sample revealed severe inflammation and computed tomography showed an 8 mm diameter stone in the right middle ureter and hydronephrosis. The patient was diagnosed with calculous pyelonephritis and underwent emergency ureteral stenting and antibiotic therapy. On day 8 of hospitalization, hematuria and right back pain developed, and on day 9 bladder tamponade and anemia developed. Contrast-enhanced computed tomography revealed a ruptured pseudoaneurysm, and the patient underwent successful angioembolization. The patient was discharged on day 23.

Conclusion

We report a case of a renal pseudoaneurysm possibly caused by calculous pyelonephritis.

Successful ultrasound-guided percutaneous embolization of renal pseudoaneurysm by autologous blood clot: Preliminary report of a new method

We report the case of a 25-year-old female with renal arteriovenous fistula and pseudoaneurysm (PA) formation following renal core-needle biopsy, treated successfully by ultrasound-guided percutaneous embolization with autologous blood clot injection. After inserting a 15-gauge needle within the PA sac, 10 ml of blood was retrieved from the sac, and then reinjected into the PA as well as in the needle tract after the obtained blood completely clotted. The procedure was completed by manual compression of the flank. Follow-up sonographic examinations revealed no complication, and the PA size reduced gradually over time due to fibrotic shrinkage. © 2017 Wiley Periodicals, Inc. J Clin Ultrasound 45:592-596, 2017.

Renal artery pseudoaneurysm after robotic-assisted partial nephrectomy: case report

Renal artery pseudoaneurysm is an uncommonly recognized complication following partial nephrectomy. It is more common with trauma and percutaneous renal intervention. Furthermore, it is rarely reported with minimally invasive laparoscopic partial nephrectomy. Herein, we report the first case to our knowledge of renal artery pseudoaneurysm following a robotic-assisted partial nephrectomy.

Angio-embolization of a renal pseudoaneurysm complicating a percutaneous renal biopsy: a case report

We report the treatment of a bleeding renal pseudoaneurysm by angio-embolization. A 21 years old woman developed macroscopic haematuria following renal biopsy. Renal angio-scan showed a 1.4 cm renal pseudoaneurysm in the left kidney. The presence of pseudoaneurysm was confirmed by selective renal angiography. Successful embolization was performed using gelatine sponge particles.