Abstract
Calcified ureteral obstruction is a rare complication of vasculitis. Only a few cases of eosinophilic granulomatosis with polyangiitis (EGPA) have been published. We herein report a case of successful surgical repair of bilateral ureteral strictures in a patient with EGPA. A retrograde pyelogram revealed complete bilateral ureteral obstruction in the patient. Bilateral nephrostomies were placed because we were unable to introduce a double-J stent. The vasculitis and eosinophilia both responded to immunosuppressive therapy, but ureteral obstruction persisted. Surgical reconstruction was elected in order to eliminate the need for permanent external drainage. A combined nephrostogram/retrograde ureterogram revealed a 10 cm right ureteral gap and a 3 cm left ureteral gap. The left ureter was amenable to end-to- end anastomosis, pyeloureteroplasty, but repair of the right ureter required interposition of intestinal tissue. Right ureteral reconstruction was performed by combining the Yang-Monti ileal ureteral substitution and appendiceal interposition with a psoas hitch. The isolated appendix was interposed in an antiperistaltic fashion between the Yang-Monti tube and bladder. His kidney function has remained normal, and he is without vasculitic symptoms.
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