How do cyst fluid carcinoembryonic antigen and amylase help differentiate among the common pancreatic cystic lesions?
Levels of CEA and Amylase in Pancreatic Cystic Lesions
| Type of Cyst | CEA | Amylase |
|---|---|---|
| Pseudocyst | ↓ (< 192 ng/mL) | ↑ (> 250 U/L) |
| Serous cystadenoma | ↓ | ↓ |
| Mucinous cystic neoplasm | ↑ | ↓ |
| Intraductal papillary mucinous neoplasm | ↑ | ↑ |
CEA, Carcinoembryonic antigen.
