title: Effective treatment of biliary cystadenoma.
abstract: OBJECTIVE
  Evaluate experience over 15 years with treatment of this lesion.
  
  
  BACKGROUND
  Biliary cystadenoma, a benign hepatic tumor arising from Von Meyenberg complexes, usually present as septated intrahepatic cystic lesions.
  
  
  METHODS
  Data were collected concurrently and retrospectively on patients identified from hospital medical records reviewed for pertinent International Classification of Diseases, Ninth Revision, Clinical Modification and CPT codes, pathology logs, and from operative case logs. Pathology specimens were rereviewed to confirm the diagnosis of biliary cystadenoma or biliary cystadenocarcinoma by 2 GI pathologists.
  
  
  RESULTS
  From October 1989 to April 2004 at our institution, 19 (18F:1M) patients had pathologically confirmed biliary cystadenomas, including one with a biliary cystadenocarcinoma. The mean age was 48 +/- 15 years at initial evaluation. Complaints included abdominal pain in 74%, abdominal distension in 26%, and nausea/vomiting in 11%. Only 1 patient presented with an incidental finding. Symptoms had been present for 3 +/- 5 years, with 1 to 4 different surgeons and many other physicians involved in the diagnosis or treatment prior to definitive ablation. Eight patients had undergone 20 previous treatments, including multiple percutaneous aspirations in 4 and 11 operative procedures. CT or US was diagnostic in 95%, with internal septations present in the hepatic cysts. Definitive operative intervention consisted of hepatic resection in 12 patients, enucleation in 6 patients, and fenestration and complete fulguration in 1 patient. There were no perioperative deaths. No recurrences were observed after definitive therapy, with follow-up of 4 +/- 4 years.
  
  
  CONCLUSIONS
  Biliary cystadenoma must be recognized and treated differently than most hepatic cysts. There remains a need for education about the imaging findings for biliary cystadenoma to reduce the demonstrated delay in appropriate treatment. Traditional treatment of simple cysts such as aspiration, drainage, and marsupialization results in near universal recurrence and occasional malignant degeneration. This experience demonstrates effective options include total ablation by standard hepatic resection and cyst enucleation.
authors.affiliation: Division of Hepatobiliary Surgery and Liver Transplantation, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-5545, USA.
authors.forename: K Tyson
authors.initials: KT
authors.lastname: Thomas
authors.forename: Derek
authors.initials: D
authors.lastname: Welch
authors.forename: Andrew
authors.initials: A
authors.lastname: Trueblood
authors.forename: Paulgun
authors.initials: P
authors.lastname: Sulur
authors.forename: Paul
authors.initials: P
authors.lastname: Wise
authors.forename: D Lee
authors.initials: DL
authors.lastname: Gorden
authors.forename: Ravi S
authors.initials: RS
authors.lastname: Chari
authors.forename: J Kelly
authors.initials: JK
authors.lastname: Wright
authors.forename: Kay
authors.initials: K
authors.lastname: Washington
authors.forename: C Wright
authors.initials: CW
authors.lastname: Pinson
mesh_terms: D000328:Adult; D000368:Aged; D001661:Biliary Tract Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D003537:Cystadenoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed