Atrial Mass in Pregnancy: A Rare Case of Intracardiac Ectopic Liver

We report a case of a 41-year-old female who was found to have a 2.7-cm right atrial mass during the third trimester of her pregnancy. She underwent successful surgical resection 4 months after an uneventful delivery. Pathologic examination revealed an ectopic liver, a remarkably rare finding in this anatomic location. The potential for malignant transformation, embolization, obstruction and the need for histologic diagnosis necessitated surgical removal of the intracardiac ectopic liver. We discuss the role of cardiovascular imaging and considerations for surgical planning. In addition, we review the hormonal alterations during pregnancy that may promote growth of hepatic tissue.