title: [Evaluation and prognostic of cystic renal tumors].
abstract: OBJECTIVE
  To evaluate the clinical and pathological characteristics of cystic renal tumors in our center.
  
  
  METHODS
  A retrospective review of 239 nephrectomies is performed comparing the clinical and pathological variables of cystic tumors with those of solid renal tumors. Survival outcomes are analyzed in both groups.
  
  
  RESULTS
  Our experience shows that cystic renal tumors behave like solid renal tumors, with no differences in survival shown. The variables studied show statistically significant differences in histological grade and number of tumors, with cystic tumors having a lower histological grade and being more often multiple in number.
  
  
  CONCLUSIONS
  The behavior of cystic renal tumors is no different than that of solid renal tumors.
authors.affiliation: Departamento de Urología, Clínica Universitaria de Navarra, Pamplona.
authors.forename: J
authors.initials: J
authors.lastname: López Ferrandis
authors.forename: J
authors.initials: J
authors.lastname: Rioja Zuazu
authors.forename: A
authors.initials: A
authors.lastname: Saiz Sansi
authors.forename: J Ma
authors.initials: JM
authors.lastname: Regojo Balboa
authors.forename: J M
authors.initials: JM
authors.lastname: Fernández Montero
authors.forename: D
authors.initials: D
authors.lastname: Rosell Costa
authors.forename: J E
authors.initials: JE
authors.lastname: Robles García
authors.forename: J J
authors.initials: JJ
authors.lastname: Zudaire Bergera
authors.forename: J María
authors.initials: JM
authors.lastname: Berián Polo
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000175:diagnosis / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009392:Nephrectomy; D011379:Prognosis; D012189:Retrospective Studies; D015996:Survival Rate