title: Imaging features of pancreatic tumors in children: 13-year experience at a pediatric tertiary hospital.
abstract: BACKGROUND
  Pancreatic tumors are rare in children, resulting in limited information regarding their frequency and imaging appearances.
  
  
  OBJECTIVE
  To review all pancreatic tumors seen in children over a decade at a large tertiary pediatric institution and to describe multimodality imaging findings.
  
  
  METHODS
  We conducted a retrospective review of imaging studies performed in children with pancreatic tumors between January 2000 and December 2012, analyzing imaging features on available US, CT and MR examinations. We reviewed patient charts for clinical features, management and final diagnosis.
  
  
  RESULTS
  We included 23 children in this study. Of these, 12 had solid and papillary epithelial neoplasms (SPEN), 3 had neuroendocrine tumors, 3 had lymphoma, and 1 each had hemangioendothelioma, benign congenital cysts with adipose tissue, dendritic cell sarcoma, metastatic rhabdomyosarcoma, and lipoma. All children with SPEN were teenage girls. SPEN showed characteristic imaging features including well-defined margins with surrounding capsule, solid-cystic components and hemorrhage.
  
  
  CONCLUSIONS
  Pancreatic tumors are uncommon in children. SPEN is the most common tumor and is seen predominantly in teenage girls and shows characteristic imaging features.
authors.affiliation: Department of Medical Imaging, University of Toronto, 555 University Ave., Toronto, ON, M5G 1X8, Canada.
authors.forename: Tahiya S
authors.initials: TS
authors.lastname: Ahmed
authors.forename: Govind B
authors.initials: GB
authors.lastname: Chavhan
authors.forename: Oscar M
authors.initials: OM
authors.lastname: Navarro
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Traubici
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003952:Diagnostic Imaging / Q000706:statistics & numerical data*; D005260:Female; D006776:Hospitals, Pediatric / Q000706:statistics & numerical data*; D006801:Humans; D015994:Incidence; D007223:Infant; D008137:Longitudinal Studies; D008297:Male; D009864:Ontario; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000453:epidemiology; D035583:Rare Diseases / Q000175:diagnosis / Q000453:epidemiology; D012307:Risk Factors; D062606:Tertiary Care Centers / Q000706:statistics & numerical data*