Abstract
Embolization with N-butyl-2-cyanoacrylate (NBCA) is an effective and safe procedure recently used for closure of upper tract urinary fistula. However, NBCA constitutes a foreign body for human organs, so it can cause complications. In our case a 56-year-old man underwent an endoscopic embolization of urinary fistula with NBCA. Six years later an UroCT scan revealed a large lithiasis of the left kidney, treated with endoscopic and percutaneous surgery. Stone analysis revealed a composition of crystals mixed with cyanoacrylate. In our opinion this example of complication after NBCA use for endoscopic procedures, rarely reported in literature, can be an useful advisement to reconsider the use of this glue. Keywords: N-butyl-2-cyanoacrylate; gluestone; percutaneous; endoscopic; fistula
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