title: Common bile duct villous adenoma: a case report and review of the literature.
abstract: BACKGROUND
  According to the literature, benign bile duct tumors are exceedingly uncommon. To the best of our knowledge, we report the largest extrahepatic bile duct villous adenoma described in the literature.
  
  
  METHODS
  We present a case of a 77-year-old Caucasian woman with obstructive jaundice. Laboratory tests revealed that she had elevated bilirubin and liver enzyme levels. A computed tomographic scan showed a homogeneous 5 × 3-cm mass obstructing the common bile duct. The results of brush cytology were consistent with a bile duct villous papilloma. However, on the basis of the tumor's radiological features, a preliminary diagnosis of extrahepatic bile duct malignant tumor was made. After discussion among the multidisciplinary team, a surgical resection of the bile duct tumor was performed. Histopathological examination confirmed a villous adenoma. The patient's postoperative course was uneventful.
  
  
  CONCLUSIONS
  In patients with bulky extrahepatic bile duct tumors, surgical resection alone may be safe and curative.
authors.affiliation: Faculty of Medicine, Vilnius University, M. K. Čiurlionio Street 21, 03101, Vilnius, Lithuania. karolis7c@yahoo.com.
authors.forename: Karolis
authors.initials: K
authors.lastname: Čekas
authors.affiliation: Clinic of Internal Diseases, Family Medicine and Oncology, Faculty of Medicine, Vilnius University, Department of Gynecology, Center of Women's Physiology and Pathology, Vilnius University Hospital Santariškių Klinikos, Santariškių Street 2, 08661, Vilnius, Lithuania. vilius.rudaitis@santa.lt.
authors.forename: Vilius
authors.initials: V
authors.lastname: Rudaitis
authors.affiliation: Clinic of Gastroenterology, Nephrourology and Surgery, Faculty of Medicine, Vilnius University, Center of Abdominal Surgery, Vilnius University Hospital Santariškių Klinikos, Santariškių Street 2, 08661, Vilnius, Lithuania. virgilijus.beisa@mf.vu.lt.
authors.forename: Virgilijus
authors.initials: V
authors.lastname: Beiša
authors.affiliation: Clinic of Gastroenterology, Nephrourology and Surgery, Faculty of Medicine, Vilnius University, Center of Abdominal Surgery, Vilnius University Hospital Santariškių Klinikos, Santariškių Street 2, 08661, Vilnius, Lithuania. valdemaras.jotautas@mf.vu.lt.
authors.forename: Valdemaras
authors.initials: V
authors.lastname: Jotautas
authors.affiliation: Department of Radiology, Nuclear Medicine and Medical Physics, Faculty of Medicine, Vilnius University, Center of Radiology and Nuclear Medicine, Vilnius University Hospital Santariškių Klinikos, Santariškių Street 2, 08661, Vilnius, Lithuania. dileta.rutkauskaite@santa.lt.
authors.forename: Dileta
authors.initials: D
authors.lastname: Rutkauskaitė
authors.affiliation: National Center of Pathology, P. Baublio 5, 08406, Vilnius, Lithuania. raimundas.meskauskas@vpc.lt.
authors.forename: Raimundas
authors.initials: R
authors.lastname: Meškauskas
authors.affiliation: Clinic of Gastroenterology, Nephrourology and Surgery, Faculty of Medicine, Vilnius University, Center of Abdominal Surgery, Vilnius University Hospital Santariškių Klinikos, Santariškių Street 2, 08661, Vilnius, Lithuania. eugenijus.stratilatovas@santa.lt.
authors.forename: Eugenijus
authors.initials: E
authors.lastname: Stratilatovas
mesh_terms: D018253:Adenoma, Villous / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D000368:Aged; D001650:Bile Duct Neoplasms / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D003135:Common Bile Duct / Q000473:pathology*; D005260:Female; D006801:Humans; D041781:Jaundice, Obstructive / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D007813:Laparotomy; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome