title: Nephron-sparing surgery for clear cell carcinoma in a solitary functional kidney. Case report and literature review.
abstract: BACKGROUND
  Since the introduction of nephron-sparing surgery, patients with small renal masses and diseases affecting overall renal function have greatly benefited.
  
  
  METHODS
  We present the case of a 62-year-old male with a 6-cm left renal tumor in the medial parahilar segment with right renal unit functionally excluded, secondary to chronic obstruction due to ureteral lithiasis. Right ureteroscopy was performed with pneumatic lithotripsy. Despite localization and size of the tumor, left nephron-sparing surgery was performed in order to preserve renal function. Follow-up of the patient demonstrates no tumor activity.
  
  
  CONCLUSIONS
  Open nephron-sparing surgery has been the standard treatment for small renal masses with peripheral localization; however, in specific cases with deteriorated renal function and tumors >5 cm close to the renal hilum, certain risk must be taken in order to perform this procedure that has proven to be highly effective in preserving renal function. Open nephron-sparing surgery represents a highly effective procedure in small renal masses with a nonfunctional contralateral kidney.
authors.affiliation: Servicio de Urología, Hospital General de México, Secretaría de Salud, México, D. F., Mexico. hamanzanilla@gmail.com
authors.forename: Hugo Arturo
authors.initials: HA
authors.lastname: Manzanilla-García
authors.forename: Alejandro
authors.initials: A
authors.lastname: Lira-Dale
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Rosas-Nava
authors.forename: Mario Silvino
authors.initials: MS
authors.lastname: Almanza-González
mesh_terms: D002292:Carcinoma, Renal Cell / Q000098:blood supply / Q000000981:diagnostic imaging / Q000601:surgery*; D015718:Fibrin Tissue Adhesive; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology; D007680:Kidney Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging / Q000601:surgery*; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000295:instrumentation / Q000379:methods*; D009399:Nephrons / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014464:Ultrasonic Therapy / Q000295:instrumentation; D014514:Ureteral Calculi / Q000150:complications / Q000628:therapy; D018666:Ureteroscopy
chemical_list: D015718:Fibrin Tissue Adhesive