Cholangiographic criteria for anomalous union of the pancreatic and biliary ducts

Anomalous union of the pancreaticobiliary duct without choledochal cyst: is cholecystectomy alone sufficient?

“…The frequency of encountering AUPBD in patients undergoing ERCP ranges from 0.9 to 8.7 % depending on the type of diagnostic modalities used, the study population, and the country where the study had been conducted [6]. The prevalence of AUPBD in our study was 0.54 % which is somewhat lower than that of Japan (1.5 to 3.2 %), but was significantly more common in women than in men which is similar to previous reports [15,18,19]. It is well known that AUPBD is commonly associated with choledochal cyst and carcinomas of the biliary tract, i.e., bile duct and gallbladder.…”

“…that had been identified or suspected on other imaging studies (abdominal ultrasonography, abdominal CT scan, or magnetic resonance cholangiopancreatography), (2) unexplained abdominal pain and/or abnormal liver function tests despite other imaging studies, and (3) prior to pancreaticobiliary surgery. AUPBD was radiographically diagnosed when the length of the long common channel was ≥15 mm [14], and the union of the CBD and the main pancreatic duct was situated proximal to the narrow distal segment, which corresponds to the sphincter of Oddi [15]. AUPBD was then divided into P-C union and C-P union subtypes according to Kimura's classification: the main pancreatic duct enters the CBD in P-C union, whereas CBD enters the main pancreatic duct in C-P union [16].…”

Epidemiology of Gallbladder Disease: Cholelithiasis and Cancer

“…An anomalous pancreaticobiliary junction is a rare congenital anomaly of the biliary tract in which the pancreatic and biliary ducts join outside the duodenal wall, forming an abnormally long channel that lies beyond the sphincter of Oddi 208. Such an anomaly defeats sphincter of Oddi gatekeeper function, potentially allowing pancreatic secretions to regurgitate into the biliary system and gallbladder, and so leading to malignant changes in the mucosa 209.…”

Highly resolved free-breathing magnetic resonance cholangiopancreatography in the diagnostic workup of pancreaticobiliary diseases in infants and young children—initial experiences

“…The length can be exactly measured by curved reformations of the 3-dimensional data. The congenital choledochal cyst is frequently related with pancreaticobiliary malunion [11]. The definition of the pancreaticobiliary maljunction has not been standardized.…”