M. Soudack et al., Elevated carbohydrate antigen 19-9 in patients with true (epithelial) splenic cysts - Rare or undiscovered?, CAN J GASTR, 15(2), 2001, pp. 125-126
Carbohydrate antigen 19-9 is a well known marker for pancreatic adenocarcin
oma. However, its limitation is its nonspecificity, because elevated levels
may be encountered in other gastrointestinal disorders, both benign and ma
lignant. The following case is a patient with a true (epithelial) splenic c
yst with elevated serum levels of carbohydrate antigen 19-9.