1. Epidemiology, presentation, diagnosis, and outcomes of choledochal cysts in adults in an urban environment.
- Author
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Wiseman K, Buczkowski AK, Chung SW, Francoeur J, Schaeffer D, and Scudamore CH
- Subjects
- Adult, British Columbia epidemiology, Choledochal Cyst diagnosis, Choledochal Cyst epidemiology, Diagnosis, Differential, Female, Humans, Incidence, Male, Retrospective Studies, Urban Population, Choledochal Cyst pathology, Choledochal Cyst surgery
- Abstract
Background: Choledochal cysts (CDC) are rare congenital cystic lesions of the biliary tract. In North America the incidence of CDC is estimated as 1/150,000; it is not clear that the disease pattern in North America is similar to that in Asia., Methods: Retrospective chart review. Statistical analysis was under taken using Fisher's exact test., Results: Presentation, epidemiology, diagnosis, and outcome were evaluated in 51 patients with CDC. Malignant transformation was identified in 4 patients presenting uniformly with jaundice (P = .027). Type 4a cysts (54.9%) were the most common cyst identified. Four (14%) type IVa and two (13%) type I cysts developed postoperative stricture. No patient developed cholangiocarcinoma after complete resection of their cyst., Conclusions: Types I and IVa cysts can be treated similarly with excellent outcome. However, our observation of a high proportion of type 4a cysts may represent a specific North American pattern of this disease requiring a re-evaluation of the classification system.
- Published
- 2005
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