title: [Retroperitoneal ganglioneuroma in childhood].
abstract: OBJECTIVE
  An incidentally discovered retroperitoneal ganglioneuroma in a 4-year-old child is presented.
  
  
  METHODS
  Ultrasonography and CT were performed. The surgical specimen was analyzed by macroscopic, histological and immunohistochemical techniques.
  
  
  RESULTS
  US and CT localized a retroperitoneal mass independent from the left kidney and adrenal gland. The histological study showed a fascicular proliferation with myxoid and fibrillar areas mixed with mature ganglion cells. These cells were positive for neurofilament and neuron specific enolase. The patient had a favorable outcome with no signs of tumor recurrence.
  
  
  CONCLUSIONS
  Ganglioneuroma is a rare, completely mature tumor that has to be differentiated from neuroblastoma.
authors.affiliation: Servicio de Radiología, Hospital Na Sa Covadonga, Oviedo, Asturias, España. alejovara@arrakis.es
authors.forename: A
authors.initials: A
authors.lastname: Vara Castrodeza
authors.forename: B
authors.initials: B
authors.lastname: Madrigal Rubiales
authors.forename: M J
authors.initials: MJ
authors.lastname: Pérez del Río
authors.forename: J B
authors.initials: JB
authors.lastname: García Hernández
authors.forename: P
authors.initials: P
authors.lastname: Ablanedo Ablanedo
mesh_terms: D002675:Child, Preschool; D005260:Female; D005729:Ganglioneuroma / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed