title: Laparoscopic distal pancreatectomy for intrapancreatic accessory spleen: case report.
abstract: BACKGROUND
  Accessory spleens can be found in up to 10% of the population, and their intrapancreatic occurrence is considered uncommon. When present, the intrapancreatic accessory spleen is usually found in the tail of the pancreas in about 1.7% of adult individuals. The infrequent presence of the accessory spleen in the pancreatic tissue could lead to inappropriate diagnosis and hence therapeutic approach, as they are commonly presented as a hypervascular node in the tail of the pancreas on abdominal CT and MRI, mimicking a well differentiated tumor of the pancreas or non-functioning pancreatic neuroendocrine tumor.
  
  
  METHODS
  We present a 70-year-old female in whom a preoperative evaluation finding was highly suggestive of a non-functioning neuroendocrine tumor of the pancreatic tail. We performed spleen preserving laparoscopic distal pancreatectomy, and histopathological examination revealed the intrapancreatic accessory spleen.
  
  
  CONCLUSIONS
  Although infrequent, the presence of the intrapancreatic accessory spleen must be considered in the differential diagnosis of pancreatic tail tumors.
authors.forename: Slavko
authors.initials: S
authors.lastname: Matieć
authors.forename: Djordje
authors.initials: D
authors.lastname: Knežević
authors.forename: Igor
authors.initials: I
authors.lastname: Ignjatović
authors.forename: Nikola
authors.initials: N
authors.lastname: Grubor
authors.forename: Vladimir
authors.initials: V
authors.lastname: Dugalić
authors.forename: Marjan
authors.initials: M
authors.lastname: Micev
authors.forename: Srbislav
authors.initials: S
authors.lastname: Knežević
mesh_terms: D000368:Aged; D002828:Choristoma / Q000175:diagnosis / Q000601:surgery*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008279:Magnetic Resonance Imaging; D010180:Pancreatectomy / Q000379:methods*; D010182:Pancreatic Diseases / Q000175:diagnosis / Q000601:surgery*; D010190:Pancreatic Neoplasms; D013154:Spleen; D014057:Tomography, X-Ray Computed