title: Superinfection of focal liver lesions after bile duct procedures.
abstract: OBJECTIVE
  Pyogenic liver abscess is a rare condition in the general population. The source of infection is most often biliary, and more rarely gastrointestinal via the portal tract, or even hematogenic. Other than in special contexts (scarring after radiofrequency ablation), focal liver lesions are not a usual risk factor for hepatic abscesses in patients with a history of bile duct procedures (sphincterotomy, biliary stenting, biliary enteric anastomosis). MATERIALS AND METHOD - RESULTS: We report four cases of focal liver lesions (two patients with benign lesions of the biliary cyst type and two other patients with lesions due to pancreatic cancer) complicated by a superinfection in patients with a history of bile duct procedures. There were no predisposing factors other than a context of cancer or diabetes.
  
  
  CONCLUSIONS
  Superinfection of a focal liver lesion should be considered when there is a suggestive clinical picture and a change in the appearance of the lesion in patients with a history of bile duct procedures in a context of cancer or diabetes.
authors.affiliation: Department of Radiology, hôpital de la Croix-Rousse, hospices civil de Lyon, Lyon, France. thibaut.montvuagnard@gmail.com
authors.forename: T
authors.initials: T
authors.lastname: Montvuagnard
authors.forename: V
authors.initials: V
authors.lastname: Thomson
authors.forename: M
authors.initials: M
authors.lastname: Durieux
authors.forename: J-Y
authors.initials: JY
authors.lastname: Mabrut
authors.forename: A-M
authors.initials: AM
authors.lastname: Marion-Audibert
authors.forename: Y
authors.initials: Y
authors.lastname: Berthezene
authors.forename: A
authors.initials: A
authors.lastname: Rode
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary / Q000601:surgery*; D000368:Aged; D015904:Biliopancreatic Diversion; D017024:Chemotherapy, Adjuvant; D016983:Enterococcus; D004927:Escherichia coli Infections / Q000175:diagnosis / Q000628:therapy; D005260:Female; D006801:Humans; D007710:Klebsiella Infections / Q000175:diagnosis / Q000628:therapy; D008100:Liver Abscess / Q000175:diagnosis* / Q000601:surgery; D008113:Liver Neoplasms / Q000175:diagnosis / Q000556:secondary / Q000628:therapy; D008297:Male; D010166:Palliative Care; D010190:Pancreatic Neoplasms / Q000601:surgery*; D016577:Pancreaticoduodenectomy; D011183:Postoperative Complications / Q000175:diagnosis*; D013290:Streptococcal Infections / Q000175:diagnosis / Q000628:therapy; D034366:Streptococcus anginosus; D015163:Superinfection / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed