title: Elevated carbohydrate antigen 19-9 levels in a patient with choledocholithiasis.
abstract: Carbohydrate antigen 19-9 (CA19-9) has been used as a tumor marker in the diagnosis and differentiation of pancreatic cancers. However, significantly high levels of CA 19-9 in the absence of pancreatic malignancy have also been reported. We present a 50-year-old woman with a common bile duct stone and cholangitis, whose CA 19-9 level of 1.500 U/ml returned to normal after definitive treatment of choledocholithiasis.
authors.affiliation: GATA Haydarpaşa Education Hospital, Department of Gastroenterology, Istanbul. ahmetgurbuz2002@yahoo.com
authors.forename: Ahmet K
authors.initials: AK
authors.lastname: Gürbüz
authors.forename: A Melih
authors.initials: AM
authors.lastname: Ozel