title: Intrapelvic lipoblastoma with massive spinal canal invasion.
abstract: OBJECTIVE
  The lipoblastoma is a rare benign pediatric neoplasm that derives from embryonic white fat cells. However, this tumor with spinal invasion in children is extremely rare. We report a case of a 3-year-old boy who had lipoblastoma with massive invasion into the lower lumbosacral spinal canal.
  
  
  METHODS
  A 3-year-old boy had suffered from progressive urinary incontinence and uncontrolled defecation during past 3 months. Computed tomography and magnetic resonance imaging scans showed that a large lobulated pelvic cavity mass had invaded the lumbosacral spinal canal. The mass was located over the epidural space from L4 to the lower sacral spinal canal, resulting in the compression of the thecal sac. After total laminectomy from L4 to S3 with flavectomy, a subtotal mass removal for the intraspinal canal mass was done. Histopathologic diagnosis confirmed the lipoblastoma.
  
  
  CONCLUSIONS
  Lipoblastoma is a rare benign neoplasm and lumbosacral invasion is unique. Complete surgical excision is the treatment of choice. If an incomplete surgical excision is performed, close observation and clinical follow-up must be done because a recurrence is possible.
authors.affiliation: Department of Neurosurgery, College of Medicine Chungnam National University, 640, Daesa-dong, Jung-gu, Daejeon 301-721, South Korea.
authors.forename: Seung-Won
authors.initials: SW
authors.lastname: Choi
authors.forename: Shi-Hun
authors.initials: SH
authors.lastname: Song
mesh_terms: D002675:Child, Preschool; D004396:Coloring Agents; D006801:Humans; D008067:Lipoma / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D018205:Neoplasms, Adipose Tissue / Q000473:pathology* / Q000601:surgery; D019635:Neurosurgical Procedures; D010386:Pelvic Neoplasms / Q000473:pathology* / Q000601:surgery; D010529:Peritoneal Cavity / Q000000981:diagnostic imaging / Q000473:pathology; D013120:Spinal Cord Neoplasms / Q000556:secondary* / Q000601:surgery; D014463:Ultrasonography
chemical_list: D004396:Coloring Agents