title: [Surgical treatment of congenital mesoblastic nephroma].
abstract: BACKGROUND
  Renal tumors are rare in infants less than 6 months of age, being congenital mesoblastic nephroma the most frecuent in this age group. We reported 4 cases treated in our hospital in the last years.
  
  
  METHODS
  We analyze age, sex, the clinical presentation as well as diagnosis and treatment.
  
  
  RESULTS
  Range of age at diagnosis was 0-6 months. In our study the predominant sex was female. Clinical presentation was abdominal mass in all of cases with hypertension (HTA) in two of them. Scan ultrasound has been the method of dignostic, that was completed with Magnetic Resonance Imaging (MRI). The tretament was open surgery in three cases and laparoscopic on the last. All patients are alive with no evidence of disease.
  
  
  CONCLUSIONS
  Low frecuency of this tumor limit the experience on diagnostic and treatment. Standard treatment is nephroureterectomy radical with free margins. Adjuvant therapy should be considered in recurrent disease although exists few studies. Laparoscopic surgery should be an alternative to clasical treatment since permits excision with good security margins.
authors.affiliation: Sección de Urología Infantil, Servicio de Cirugía Pediátrica, Hospital Universitario 12 de Octubre, Madrid. raquelteje@gmail.com
authors.forename: R
authors.initials: R
authors.lastname: Tejedor Sánchez
authors.forename: M
authors.initials: M
authors.lastname: López Díaz
authors.forename: D
authors.initials: D
authors.lastname: Cabezalí Barbancho
authors.forename: A
authors.initials: A
authors.lastname: Gómez Fraile
authors.forename: F
authors.initials: F
authors.lastname: López Vázquez
authors.forename: A
authors.initials: A
authors.lastname: Aransay Bramtot
authors.forename: I
authors.initials: I
authors.lastname: Cano Novillo
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D007680:Kidney Neoplasms / Q000151:congenital* / Q000601:surgery*; D008297:Male; D018201:Nephroma, Mesoblastic / Q000151:congenital* / Q000601:surgery*