Frequency of bile duct confluence variations in subjects with pancreas divisum: an analysis of MRCP findings

Diagnostic and Interventional Radiology : Official Journal of the Turkish Society of Radiology
Ayşegül Gürsoy ÇoruhAyşe Erden

Abstract

We aimed to evaluate the frequency of bile duct branching pattern variations at the hepatic confluence in patients with pancreas divisum (PD). A search was performed through the hospital database using the keyword "pancreas divisum" to identify patients. The magnetic resonance cholangiopancreatography (MRCP) images of 137 patients who were diagnosed with PD between August 2011 and November 2016 were retrospectively analyzed for the presence of bile duct variations. A control group of 137 patients without PD was established among patients investigated during the same period. Variations of the biliary tract were grouped into seven types according to the McSweeney et al. classification. Biliary tract variations were detected in 103 of a total of 274 patients. Fifty-eight PD patients (42.3%) and 45 control patients (32.8%) had bile duct variation at the hepatic confluence level. The patients with PD were more likely to have biliary tract variation compared with the control group; however, it was not statistically significant (P = 0.105). The most common variation in PD patients was type 3a variation (16.8%). MRCP studies showed atypical bile duct confluence pattern in nearly half of both PD patients and controls. There was no stati...Continue Reading

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