Obstet Gynecol Sci.  2015 Nov;58(6):530-532. 10.5468/ogs.2015.58.6.530.

Abnormally high level of CA-19-9 in a benign ovarian cyst

  • 1Department Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Seoul, Korea. diners99@yahoo.co.kr


CA-19-9 antigen is mainly elevated in cases of gastrointestinal tract malignancy, including of the pancreas, colorectum, and biliary tract. CA 19-9 antigen can also be elevated in ovarian mucinous neoplasms, however, as well as in many benign conditions. Markedly raised levels of more than 10,000 U/mL were almost observed in advanced stage of malignancy. We report herein the case of a 37-year-old woman who presented with an abnormally high level of CA 19-9 antigen associated with benign mucinous cystadenoma.


CA 19-9 antigen; Cystadenoma, mucinous; Tumor markers, biological

MeSH Terms

Biliary Tract
CA-19-9 Antigen
Cystadenoma, Mucinous
Gastrointestinal Tract
Ovarian Cysts*
Biomarkers, Tumor
CA-19-9 Antigen


  • Fig. 1 Contrast-enhanced computed tomography revealed a bilobulated, enhancing cystic mass in the pelvic cavity.


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