Imaging features of intrahepatic bile duct adenoma in MRI

Intrahepatic bile duct adenoma (BDA) is a rare benign epithelial hepatic tumor that occurs in the liver, accounting for approximately 1.3% of primary liver tumors (1,2). Because patients usually have no clinical symptoms and are often accompanied by other lesions inside and outside the liver, the lesions are small, and various imaging examinations are not easy to display or obscure, so it is very easy to miss or misdiagnose. BDA may be difficult to distinguish from metastatic carcinomas, particularly welldifferentiated pancreatic ductal adenocarcinoma (3-6). At Original Article