Choledochal Cyst Mimicking a Pancreatic Pseudocyst: Case Report and Review

Abstract

Choledochal cyst (CC) is a relatively rare congenital anomaly of the biliary ducts. Its origin and formation are a matter of considerable investigation and debate, although CC is frequently associated with anomalous pancreaticobiliary junction (APJ).1 The prevalence of CC is relatively high in Asian countries, especially among women.2 The classic triad of abdominal pain, jaundice, and abdominal mass occurs in less than a third of patients.3 Many complications, including malignant degeneration, have been associated with CC, and, thus, surgical treatment is mandatory where possible.4 Although it reliably depicts CC, ERCP is invasive and has a potential for morbidity. Noninvasive techniques, such as MRCP, are potential alternatives for the diagnosis of CC and APJ.5 A case is reported of CC that was diagnosed as a pancreatic pseudocyst and initially treated by endoscopic drainage.