associated antigen (CA 19-9) has been shown to be upregulated in other malignant tumors
including gastric, ovarian, hepatocellular, and colorectal carcinoma as well as benign
diseases of the biliary track such as pancreatitis, cholangitis, and choledocholithiasis.
According to the available literature, in several cases of benign hydronephrosis and in a few
cases of benign renal diseases, elevated CA 19-9 has been noted. Case Report: A 58-year …