Cystadenofibroma with Mullerian-Type Epithelium and Stroma in the Liver: A Report of an Unusual Diagnosis and Discussion of Possible Etiologies.

Primary cystic neoplasms in the liver with ovarian type stroma typically represent mucinous cystic neoplasms. These tumors contain a cuboidal to columnar epithelium with variably mucinous cytoplasm. To the best of our knowledge, there are no reports of primary hepatic cystic neoplasms with ovarian-type stroma and ciliated epithelial lining. We describe a case of a 53-year-old woman with a history of a multicystic mass in the right hepatic lobe that did not communicate with the biliary tree. The tumor contained multiple cysts with large papillae lined with ciliated Mullerian epithelium and subepithelial ovarian-type stroma.