title: [Nonobstructive residual mucocele of the cystic duct. Reassessment of  complications in our 13 years' experience with liver transplantation].
abstract: OBJECTIVE
  We reassessed the incidence of mucocele of the residual cystic duct in our series of orthotopic liver transplantation (OLT) patients.
  
  
  METHODS
  We examined a series of 283 liver transplants with end-to-end choledocho-choledocal anastomosis (263 patients, 163 men and 80 women, 24-65 years old), performed at the II Surgical Department of the University of Bologna from May 1986 to April 1999 and subsequently followed-up in our Institute. All patients were examined with gray-scale and color Doppler US and some also underwent CT and CT cholangiography.
  
  
  RESULTS
  An anechoic ovoidal structure just before the portal vein and in proximity of the main bile duct was found in 13 patients. US and CT findings, the latter when available, led us to make a diagnosis of nonobstructive mucocele of the cystic duct. The radiological diagnosis was eventually confirmed by clinical and surgical findings.
  
  
  CONCLUSIONS
  In our series the incidence of this complication was 4.5%, a slightly higher value than those reported in the literature. Cystic duct mucocele cannot be considered an uncommon complication and should thus be more carefully searched for by operators. In our experience this complication never required reoperation for cholestasis.
authors.affiliation: Dipartimento Clinico di Scienze Radiologiche ed Istopatologiche, Radiodiagnostica III, Policlinico S. Orsola, Malpighi, Bologna.
authors.forename: M
authors.initials: M
authors.lastname: Caputo
authors.forename: M
authors.initials: M
authors.lastname: Piolanti
authors.forename: L A
authors.initials: LA
authors.lastname: Riccioli
authors.forename: L
authors.initials: L
authors.lastname: Pazienza
authors.forename: E
authors.initials: E
authors.lastname: Fabbro
authors.forename: F
authors.initials: F
authors.lastname: Gruppioni
authors.forename: G
authors.initials: G
authors.lastname: Grazi
authors.forename: G
authors.initials: G
authors.lastname: Gavelli
mesh_terms: D000328:Adult; D001649:Bile Duct Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology*; D003549:Cystic Duct / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D016031:Liver Transplantation / Q000009:adverse effects* / Q000379:methods; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000209:etiology*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
vernacular_title: Mucocele del dotto cistico residuo non ostruttivo. Rivalutazione della complicanza negli ultimi 13 anni della nostra esperienza nei trapianti del fegato.