Abstract
A 63 year-old woman with a hepatic foregut cyst forming a solid mass is reported. She had been followed up for liver cirrhosis and a small mass in S4 of the liver was detected. U.trasonography revealed a 2.4-cm low echoic mass with an internal echo in S4 of the liver. Computed tomography revealed a low density mass without enhancing effect. Angiography did not reveal any abnormality. In magnotic resonance imaging, the t1-weighted image revealed an iso-signal intensity tumor of the S4 segment, the proton image revealed a slightly low signal intensity tumor and the t2-weighted image revealed a slightly high signal intensity tumor. Enucleation was performed. The resected specimen was a cystic mass containing serous and hyperviscous uid. Histological examination showed that the wall of the cyst was covered by one layer of columnal cells with cilia. The pathological diagnosis was a ciliated hepatic foregut cyst.