Ureteroarterial fistula from ureteral stump: A challenging c
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Ureteroarterial fistula (UAF), a relatively rare condition, has been related to the use of chronic ureteral stenting for retroperitoneal fibrosis secondary to pelvic external beam radiotherapy and/or extensive pelvic surgery with lymphadenectomy.The chronic use of a ureteral stent is accomplished by changes in ureteral wall induced by the foreign body and periodic stent substitution progressively increases the damage at ureteroiliac passage.The occurrence of gross, intermittent hematuria in the context of the clinical trial of radiation, pelvic surgery and ureteral stenting is highly suspected as being UAF.We present here a challenging case of UAF detected after left nephrectomy and involving the ureteral stump. The proper diagnosis and treatment by mean of endovascular stent placement and endoureteral occlusion by mean of metallic coils and Onyx injection are discussed...

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