Pancreatic cysts are increasingly detected on imaging studies. Accurate determination of the cyst type is important to provide appropriate care for the patients. It is also very clear that not one single modality can provide adequate diagnostic information. A multidisciplinary approach is the key to the diagnosis of pancreatic cysts. In this setting, the role of ancillary testing, which includes biochemical testing (carcinoembryonic antigen and amylase levels in the cyst), molecular testing (e.g., KRAS, GNAS, VHL, and CTNB1), and/or immunohistochemical tests are very important to obtain an accurate diagnosis. This review will discuss helpful ancillary tests in common pancreatic cyst neoplasms and how to approach the diagnosis of pancreatic cysts.

Keywords:
Pancreas, Cysts, Mucinous cyst neoplasm, E-cadherin, Serous cystadenoma, Solid pseudopapillary neoplasm, β-Catenin, GNAS, Carcinoembryonic antigen, Amylase
© 2019 S. Karger AG, Basel
2019
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