A Huge Liver Cyst with High Level of CA 19-9 in Cystic Fluid and Serum after Deroofing Operation -A Case Report-

Hiroshi Fukushige, Yukihisa Nagafuchi, Shigeaki Takeda, Keiichi Ohsato

Department of Surgery I, University of Occupational and Environmental Health

A 53-year-old woman with a huge benign liver cyst in the right lobe underwent a deroofing operation. The preoperative serum CA 19-9 level was 37.8 U/ml. Per-cutaneous cystic needle aspiration showed serous fluid with an extremely high CA 19-9 level (135,400 U/ml). The postoperative serum CA 19-9 increased to 438.00 U/ml and gradually normalized. Immunohistochemical staining of the epithelium of the cyst wall was positive for CA 19-9. The efficacy of measuring CA 19-9 in cystic fluid is under discussion. In this case the CA 19-9 level was extremely high, although benign in nature.

Key words
liver cyst, tumor marker CA19-9, deroofing

Reprint requests
Hiroshi Fukushige Surgery I, University of Occupational and Environmental Health
1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807 JAPAN

Accepted
May 11, 1993

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