CT and MRI manifestations of hepatic mucinous cystic neoplasms and cyst-forming intraductal papillary neoplasm of the bile duct / 中国医学影像技术

ABSTRACT

Objective: To analyze CT and MRI manifestations of mucinous cystic neoplasms (MCN) and cyst-forming intraductal papillary neoplasms of the bile duct (IPNB). Methods: Clinicopathological and imaging data of 25 MCN patients (MCN group) and 16 cyst-forming IPNB patients (IPNB group, including 10 invasive IPNB patients and 6 noninvasive IPNB patients) confirmed pathologically were retrospectively analyzed. Results: There were significant differences of bile duct dilation, communication with lesions and bile ducts, mural nodules between MCN group and IPNB group (all P0.05). Only lesion diameter was significantly different between invasive and noninvasive IPNB (P=0.032). Conclusion: CT and MRI features of MCN and cyst-forming IPNB are similar. Dilated bile ducts, communication between dilated bile ducts and mural nodules in lesions have high value in differential diagnosis of these two diseases.