title: Renal-artery pseudoaneurysm after laparoscopic partial nephrectomy.
abstract: OBJECTIVE
  Laparoscopic partial nephrectomy (LPN) has emerged as a minimally invasive treatment for small renal masses. The most common complications include hemorrhage and urinary-fistula formulation. Renal-artery pseudoaneurysm has been described after open nephron-sparing surgery. We present two cases of renal-artery aneurysm following LPN.
  
  
  METHODS
  Two patients with incidentally discovered renal masses underwent LPN with excellent hemostasis and presented in a delayed fashion with gross hematuria and flank pain. Both patients were treated with angiographic coil embolization, resulting in resolution of the pseudoaneurysms on postprocedure imaging.
  
  
  CONCLUSIONS
  Renal-artery pseudoaneurysm is a potentially life-threatening complication of LPN. Patients present in a delayed fashion with gross hematuria, flank pain, or both. The treatment of choice is angiography with selective coil embolization.
authors: Department of Urology, Boston University School of Medicine, Boston, Massachusetts 02118, USA.
authors: Jayant
authors: J
authors: Uberoi
authors: Khalid H
authors: KH
authors: Badwan
authors: David S
authors: DS
authors: Wang
mesh_terms: D000328:Adult; D017541:Aneurysm, False / Q000175:diagnosis* / Q000628:therapy; D015901:Angiography, Digital Subtraction; D002291:Carcinoma, Papillary / Q000601:surgery; D002292:Carcinoma, Renal Cell / Q000601:surgery; D004621:Embolization, Therapeutic; D006801:Humans; D033162:Incidental Findings; D007680:Kidney Neoplasms / Q000601:surgery; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods*; D011183:Postoperative Complications; D012077:Renal Artery