Purpose: This retrospective study was designed to classify choledochal cysts and an anomalous union of pancreaticobilary duct (AUPBD) on the basis of imaging features and to evaluate associated findings.
Materials and Methods: Thirty-one patients with...
Purpose: This retrospective study was designed to classify choledochal cysts and an anomalous union of pancreaticobilary duct (AUPBD) on the basis of imaging features and to evaluate associated findings.
Materials and Methods: Thirty-one patients with choledochal cysts (23 female, 8 male; mean age, 46.1 years) were classified according to the types of Todani and Komi classification based on the findings of CT, MRCP and ERCP in a hospital. Two radiologists reviewed and classified the types of choledochal cysts, AUPBDs and associated findings.
Results: The most common type was IVA in 14 patients according to Todani classification. Type IA, IC, III, IB and V were as follows. According to the Komi classification, the most common type was Ia in 9 patients, and type IIb, Ib, IIa, IIIc2, IIIc3 were as follows. The associated abnormal findings were GB cancer, cholangiocarcinoma, ampulla of Vater cancer, and stones.
Conclusion: The most common types of the choledochal cyst and an AUPBD are type IVA in Todani and Ia in Komi classification. GB cancer is the most common associated malignancy. MRCP and coronal reformatted images of MDCT are very useful modality in evaluating the AUPBD.