Ciliated hepatic foregut cyst with solid tumor appearance on CT

We report a patient with a rare cystic hepatic tumor that was demonstrated as a high density mass by unenhanced CT and as a cystic mass with high echoic spots by ultrasonography. At surgery, the tumor was a unilocular cyst containing viscid tan fluid. Histopathologically, it was lined by ciliated epithelium and diagnosed as ciliated hepatic foregut cyst. We discuss the correlation between radiological imaging and content of the cyst.