title: [Retroperitoneal lipoblastoma in an infant. A case report].
abstract: BACKGROUND
  Lipoblastoma is a benign neoplasia of the adipose tissue. It is a rare conditionand almost exclusively presents in children under 3 years old. It usually occurs in extremities as a painless volume increase of progressive growth, with the definitive diagnosis being established by pathological and cytogenetic analysis. The treatment of choice is complete resection, and follow-up period of up to five years is recommended due to a recurrence of up to 25%.
  
  
  OBJECTIVE
  To present an unusual location of this uncommon condition in an infant, and review the related literature.
  
  
  METHODS
  A sixteen-month child with an increase in abdominal growth of six-months progression, associated with a decreased food intake, and with no other symptoms. The imaging study revealed a lipoid-like image compromising almost the entire abdominal cavity, very suggestive of lipoblastoma. A resection was performed on an 18cm diameter retroperitoneal tumour that rejected the adjacent organs. Histological analysis was enough to confirm diagnosis without the need for cytogenetic analysis. The follow-up showed no recurrence of the disease.
  
  
  CONCLUSIONS
  Given the rarity of this disease and its unusual presentation, we communicate this clinical case, in order to be considered in the differential diagnosis of abdominal mass in chilhood.
authors.affiliation: Licenciado en Medicina, Universidad Católica del Maule, Talca, Chile.
authors.forename: Javier
authors.initials: J
authors.lastname: Valderrama S
authors.affiliation: Cirujano Pediátrico, Magíster en Bioética, Facultad de Medicina Universidad Católica del Maule, Servicio de Cirugía Infantil, Hospital Regional de Talca, Talca, Chile. Electronic address: dschnettlerrod@yahoo.com.
authors.forename: David
authors.initials: D
authors.lastname: Schnettler R
authors.affiliation: Cirujano Pediátrico, Urólogo Pediátrico, Facultad de Medicina Universidad Católica del Maule, Servicio de Cirugía Infantil, Hospital Regional de Talca, Talca, Chile.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Zamorano H
authors.affiliation: Anátomo Patólogo, Facultad de Medicina Universidad Católica del Maule, Unidad de Anatomía Patológica, Hospital Regional de Talca, Talca, Chile.
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Lahsen H
mesh_terms: D003937:Diagnosis, Differential; D018450:Disease Progression; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D062689:Lipoblastoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
keywords: Lipoblastoma; Neoplasia; Paediatric; Pediatría; Retroperitoneal