Recurrent pancreatitis contributing to choledochal cyst formation

Abstract

We report three cases of choledochal cyst. The calibre of the common bile duct in each of them was demonstrated by ultrasonogram, CT scan, radiography and laparotomy to be almost normal before recurrent attacks of pancreatitis, following which the common bile duct was shown to become grossly dilated. This observation leads us to surmise that recurrent pancreatitis contributes to the formation of choledochal cysts.

Acute Pancreatitis Complicated with Choledochal Duct Rupture

“…Recurrent pancreatitis has been described as a contributing factor in the formation of choledochal cysts [10]. Ng et al describe three cases with a documented normal CBD who developed a choledochal cyst secondary to several episodes of pancreatitis [11].…”

Choledochal cysts: their management revisited

“…Though the histological appearance of hepatic parenchyma may only be distinguished with difficulty from that seen in biliary atresia, 11 Kato et al 14 have suggested that reflux of pancreatic enzymes in the fetus is responsible for destruction of a part of the wall of the duct. In older patients, normal hepatic parenchyma is compatible with an acquired aetiology, and choledochal cysts have been reported in patients previously shown to have normal common bile ducts 15,16 …”