title: Imaging features of pancreatoblastoma.
abstract: BACKGROUND
  Pancreatoblastoma is a rare tumour of childhood. Reports of the imaging appearances are limited.
  
  
  OBJECTIVE
  To define the imaging features of pancreatoblastoma by analysis of four previously unreported cases and review of the literature.
  
  
  METHODS
  Findings at CT (n = 4), US (n = 3) and MRI (n = 2) were retrospectively reviewed in four patients with pancreatoblastoma. A Medline search was performed to identify relevant literature.
  
  
  RESULTS
  Pancreatoblastoma arises most frequently in the body and/or tail, or involves the entire pancreas. Ultrasonography, CT and MRI show variable imaging features, but should in most cases permit preoperative distinction of pancreatoblastoma from other tumours that occur in this region in infancy and childhood. Detection of metastases in the liver, lymph nodes and peritoneal cavity is not significantly better with any one of these three modalities.
  
  
  CONCLUSIONS
  Preoperative imaging with US, CT and/or MRI will usually suggest a correct diagnosis of pancreatoblastoma. Contrary to previous reports, the tumour arises in the pancreatic head in a minority of cases.
authors.affiliation: Department of Diagnostic Radiology and Organ Imaging, Chinese University of Hong Kong.
authors.forename: D J
authors.initials: DJ
authors.lastname: Roebuck
authors.forename: M K
authors.initials: MK
authors.lastname: Yuen
authors.forename: Y C
authors.initials: YC
authors.lastname: Wong
authors.forename: M K
authors.initials: MK
authors.lastname: Shing
authors.forename: C W
authors.initials: CW
authors.lastname: Lee
authors.forename: C K
authors.initials: CK
authors.lastname: Li
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000556:secondary; D008279:Magnetic Resonance Imaging; D008297:Male; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed