A Case of Congenital Liver Cyst Showing Solid Mass (Hepatic Foregut Cyst)

Masatoshi Sasaki, Shingo Yagi, Mamoru Suzuki, Kouzo Uozu, Hiroshi Hasegawa, Hiroshi Sekikawa

Department of Surgery, Toyama Red Cross Hospital

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.

Key words
congenital liver cyst, ciliated hepatic foregut cyst

Reprint requests
Masatoshi Sasaki Department of Surgery, Toyama Red Cross Hospital
25-5-1 Higashidentigata-cho, Toyama, 930 JAPAN

Accepted
May 8, 1991

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