title: Mixed type I and II choledochal cyst in an adult.
abstract: BACKGROUND
  Choledochal cysts are classified into five types based on the location of the cyst. Mixed types of choledochal cysts are extremely rare. Only five cases of mixed type I and II choledochal cysts have been reported, of which one was an adult case. We report a mixed type I and II choledochal cyst in a 25-year-old man.
  
  
  METHODS
  The unusual nature of the choledochal cyst, suspected on magnetic resonance cholangiopancreatography RCP to be type I initially, was confirmed by laparotomy to be a mixed type I+II cyst. Excision of the cyst and hepaticojejunostomy were performed.
  
  
  RESULTS
  The operation was uneventful, and the patient recovered well.
  
  
  CONCLUSIONS
  Mixed type choledochal cysts are rare, and may be missed on imaging, unless careful evaluation is done. The operative method may not need to be modified significantly, as in the management of our case.
authors: Department of Surgery, University College of Medical Sciences and Guru Teg Bahadur Hospital, New Delhi 110095, India. drnitinagarwal76@gmail.com
authors: Nitin
authors: N
authors: Agarwal
authors: Sunil
authors: S
authors: Kumar
authors: Abdul
authors: A
authors: Hai
authors: Ritesh
authors: R
authors: Parfitt
mesh_terms: D000328:Adult; D049448:Cholangiopancreatography, Magnetic Resonance; D002763:Cholecystectomy; D015529:Choledochal Cyst / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007582:Jejunostomy; D008297:Male; D016896:Treatment Outcome