Arrangements of hepatobiliary cystadenoma complicated with congenital choledochal cyst: a case report and literature review.

Hepatobiliary cystadenoma complication with congenital choledochal cyst is extremely rare and has never been reported in literatures so far.The aim of the study was to investigate the disease arrangements by analyzing the case and performing a systematic review of the literature.This case report documents the details and clear patterns of the patient.