title: Hepatolithiasis after Hepaticojejunostomy: Ascaris lumbricoides in the biliary tract.
abstract: BACKGROUND
  Biliary ascariasis is a common problem in Third World countries and other underdeveloped areas of the world. Ascaris lumbricoides migrates into the biliary tree, where it is apparent commonly on diagnostic imaging. We present a unique case of a patient with chronic right upper quadrant abdominal pain, massive hepatolithiasis, and stricture of a previous hepaticojejunostomy in whom ascariasis was found.
  
  
  METHODS
  A 28-year-old female presented to the emergency department with right upper quadrant abdominal pain, syncope, and seizure-like activity. She was found by magnetic resonance cholangiopancreatography to have cholangitis, choledocholithiasis, and bile duct stricture. After multiple radiographic studies, she was taken to the operating room for revision of a hepaticojejunostomy performed 10 years previously.
  
  
  RESULTS
  Ascaris lumbricoides was found in the right intrahepatic bile duct, that had not been identified by multiple radiologic modalities. The worm was sent to the pathology department for identification. A Fogarty catheter was passed into the hepatic ducts for successful stone extraction. The hepaticojejunostomy was revised, with catheter placement in the Roux limb to accommodate radiologic stone extraction as necessary. Post-operatively, she was given a single dose of albendazole and discharged on hospital day 19.
  
  
  CONCLUSIONS
  The worm was likely the nidus for the stricture and stone formation. Surgical exploration of the biliary tree was required to diagnose and treat her condition accurately. This case is unique in that typical means of diagnosis failed to identify the causative agent of hepatolithiasis because of the prior Roux-en-Y hepaticojejunostomy.
authors.affiliation: 1 Department of Surgery, University of Kansas Medical Center , Kansas City, Kansas.
authors.forename: Jessica K
authors.initials: JK
authors.lastname: Heimes
authors.forename: Stephen
authors.initials: S
authors.lastname: Waller
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Olyee
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Schmitt
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000818:Animals; D001196:Ascariasis / Q000175:diagnosis / Q000209:etiology*; D017164:Ascaris lumbricoides; D001653:Bile Ducts, Intrahepatic; D001660:Biliary Tract Diseases / Q000175:diagnosis / Q000469:parasitology* / Q000601:surgery; D003251:Constriction, Pathologic / Q000175:diagnosis; D005260:Female; D006801:Humans; D007582:Jejunostomy / Q000379:methods; D020347:Lithiasis / Q000469:parasitology / Q000601:surgery*; D008099:Liver / Q000601:surgery; D008107:Liver Diseases / Q000469:parasitology / Q000601:surgery*; D064847:Multimodal Imaging; D011183:Postoperative Complications / Q000209:etiology*; D012086:Reoperation; D055815:Young Adult