title: Abnormally high level of CA-19-9 in a benign ovarian cyst.
abstract: 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.
authors.affiliation: Department Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
authors.forename: Seung-Yeon
authors.initials: SY
authors.lastname: Pyeon
authors.affiliation: Department Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
authors.forename: Ji Young
authors.initials: JY
authors.lastname: Park
authors.affiliation: Department Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
authors.forename: Kyung-Do
authors.initials: KD
authors.lastname: Ki
authors.affiliation: Department Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
authors.forename: Jong-Min
authors.initials: JM
authors.lastname: Lee
keywords: CA 19-9 antigen; Cystadenoma, mucinous; Tumor markers, biological