Biliary Cystadenocarcinoma Misdiagnosed as a Hydatic Cyst of the Liver: About a Case and Literature Review

Biliary cystadenocarcinomas are very rare malignant epithelial tumors of the liver. The preoperative diagnosis of this cystic tumor is difficult because its clinical and radiological presentation is non-specific. Complete surgical removal is the recommended treatment for hepatic cystadenocarcinoma. Incomplete resection is a source of tumor recurrence and metastatic dissemination, which is the case when it is wrongly diagnosed as another benign cystic lesion of the liver. We report a new case of biliary cystadenocarcinoma that has been diagnosed as a hepatic hydatic cyst, resulting in inadequate management.