title: Citrobacter freundii infection after acute necrotizing pancreatitis in a patient with a pancreatic pseudocyst: a case report.
abstract: BACKGROUND
  Infections are the most frequent and severe complications of acute necrotizing pancreatitis with a mortality rate of up to 80 percent. Although experimental and clinical studies suggest that the microbiologic source of pancreatic infection could be enteric, information in this regard is controversial.
  
  
  METHODS
  We describe a Citrobacter freundii isolation by endoscopy ultrasound fine needle aspiration in a 80-year-old Caucasian man with pancreatic pseudocyst after acute necrotizing pancreatitis.
  
  
  CONCLUSIONS
  Our case report confirms that this organism can be recovered in patients with a pancreatic pseudocyst. On-site cytology feedback was crucial to the successful outcome of this case as immediate interpretation of the fine needle aspiration sample directed the appropriate cultures and, ultimately, the curative therapy. To the best of our knowledge, this is the first reported case of isolated pancreatic C. freundii diagnosed by endoscopy ultrasound fine needle aspiration.
authors.affiliation: Department of Gastroenterology and Foundation for Research in Digestive Diseases, University Hospital Santiago de Compostela, Spain, A Choupana s/n, 15706, Santiago de Compostela, Spain. antoniolozan@gmail.com.
authors.forename: Antonio
authors.initials: A
authors.lastname: Lozano-Leon
authors.forename: Jose
authors.initials: J
authors.lastname: Iglesias-Canle
authors.forename: Julio
authors.initials: J
authors.lastname: Iglesias-Garcia
authors.forename: Jose
authors.initials: J
authors.lastname: Larino-Noia
authors.forename: Enrique
authors.initials: E
authors.lastname: Dominguez-Muñoz