Imaging presentation of biliary adenofibroma: A case report

Abstract

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.

Imaging Features of Biliary Adenofibroma With Malignant Transformation: A Case Report and Literature Review

“…We performed a detailed analysis of imaging information from previous cases (see Appendix) in which the median size of the lesion was 6.55 and ranged from 0.7 to 20 cm, which was mainly located under the capsule (50%) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Most of the lesions were multilobulated and multiseptated cystic.…”