Arteriovenous malformation in the kidney allograft: A rare cause of hematuria in the post-transplant patient.

Gross hematuria is one of the most common complications in postrenal transplant patients, accounting for 12% of all renal recipients. The management plan in these cases varies depending on different entities, including infection, renal cell carcinoma, chronic graft rejection, kidney calculus, or recurrence of primary disease. On the other hand, vascular malformation like arteriovenous malformation was less likely to be mentioned due to a lack of consensus in the natural history, pathogenesis, and current management. In this article, we report a 62-year-old man presenting with spontaneous hematuria for a week and 2 days of anuria after 3 years of renal transplantation. Abdominal ultrasound and abdominopelvic computed tomography noted an obstruction of the renal pelvis due to blood clots without signs of vascular injuries. An emergency operation was performed to remove blood clots in the renal pelvis, but after that, hematuria was still recurrence. A digital renal graft subtraction angiography (DSA) revealed an arteriovenous malformation (AVM)in the kidney allograft. This lesion was then successfully selective embolized with glue. Given the high accuracy of DSA, our case highlights the potential role of this imaging modality in diagnosing and treating AVM after failure with other modalities.

Prostatic artery embolization via inferior epigastric collateral in chronic total occlusion of the anterior division of the left internal iliac artery.

Prostatic artery embolization (PAE) is one of the new treatment therapies for lower urinary tract symptoms in male patients with benign prostatic hyperplasia. PAE is considered a minimally invasive option besides other famous traditional therapies such as transurethral resection of the prostate (TURP) and open surgery. Additionally, PAE has a specific advantage in managing the elderly group and underlying health conditions like anticoagulation. In this article, we presented the case of an 83-year-old male patient who has chronic urinary retention due to benign prostatic hyperplasia, left coronary artery stent placement, and long-term anticoagulation. The preinterventional computed tomography angiography showed chronic total occlusion of the anterior division of the left internal iliac artery. Bilateral PAE was performed successfully, and his urinary symptoms were significantly improved. Computed tomography allows for the accurate detection of prostatic anatomy and facilitates planning prostatic artery embolization.

Endovascular intervention with high-flow priapism: A case report.

High-flow priapism is a rare condition in the form of priapism unrelated to sexual stimulation. The disease causes a decline in quality of life and has the risk of causing long-term erectile dysfunction if not treated promptly. We report a case of a 48-year-old male patient with prolonged high-flow erection after trauma who received endovascular intervention with n-butyl-2 cyanoacrylate biological glue. Results after 40 days of intervention and use of sildenafil 25 mg/day, the patient has an erection and has normal sexual activity. Cavernous arteriovenous fistula causing priapism with high flow is a rare condition. Computed tomography helps supplement information about feeding vessels as well as accompanying injuries for comprehensive assessment before treatment. Currently, there are many treatment methods, but transcatheter arterial embolization is modality of choice for achieve clinical efficacy and can safely and flexibly reduce the risk of secondary erectile dysfunction.