@article{oai:niigata-u.repo.nii.ac.jp:00006491, author = {Hanazaki, Kazuhiro and Wakabayashi, Masao and Shimizu, Tadahiro and Sode, Yoshihisa and Kawamura, Nobuyuki and Miyazaki, Tadaaki and Ohtsuka, Masuo and Okazaki, Yohichi and Hata, Satoru}, issue = {4}, journal = {Acta medica et biologica, Acta medica et biologica}, month = {Dec}, note = {Two cases of benign cysts of the liver with a high concentration of CA19-9 in the cystic fluid are presented. Both patients complained of slight abdominal distension. Ultrasonography (US) and computed tomography (CT) revealed large cystic mass lesions in the liver. Serous fluid without atypical cells was obtained by percutaneous needle aspiration of the cysts; both cases had a high concentration of CA19-9 in the cystic fluid. Although both patients were treated by ethanol injection through the drainage tube into the cystic cavity, surgery was also required in one case. Positive immunohistochemical staining for CA19-9 was observed in the cytoplasm of the epithelial cells of the cyst wall in the surgical case. These results suggest that the high concentration of CA19-9 in the cystic fluid was due to the secretion from epithelial cells.}, pages = {179--182}, title = {Two Cases of Benign Liver Cysts with Elevated Concentrations of CA19-9 in Cystic Fluid}, volume = {42}, year = {1994} }