Use

This test is useful for aiding in distinguishing between pseudocysts and other types of pancreatic cysts. It is used in conjunction with imaging studies, cytology, and other pancreatic cyst fluid tumor markers. Measurement of amylase in pancreatic cyst fluid is often used alongside tumor markers carcinoembryonic antigen and CA19-9 for differential diagnosis of pancreatic cyst lesions, particularly to help exclude pancreatic pseudocysts. Low amylase values virtually exclude pseudocysts, as amylase levels are typically very high in pseudocysts.