摘要
BACKGROUND Biliary adenofibroma(BF)is a rare benign epithelial tumor with the possibility of malignant transformation.Its main pathological feature is a well-defined cystic or honeycomb mass.BF has no specific clinical manifestations or laboratory and imaging findings;thus,it is easily misdiagnosed before surgery.This report describes a case in which biliary cystadenoma was misdiagnosed preoperatively and BF was diagnosed postoperatively.The imaging features,particularly the magnetic resonance imaging(MRI)features,were analyzed and summarized.CASE SUMMARY A 68-year-old Chinese man was admitted to our hospital with a 2-mo history of abdominal discomfort.Following admission to our hospital,laboratory examinations showed normal tumor marker concentrations and liver function.Hepatocellular carcinoma was considered after contrast-enhanced ultrasound examination.MRI suggested the possibility of cystadenoma of the bile duct.However,postoperative pathological examination confirmed the diagnosis of BF.No local recurrence was found 1 mo after surgery.CONCLUSION Our objective is to highlight the imaging diagnostic value of BF,especially on an MRI enhanced scan with gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid.
