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Standard nine EUS criteria for CP
| Parenchymal criteria |
| Hyperechoic foci: small distinct reflectors |
| Hyperechoic strands: small, stringlike hyperechoic structures |
| Lobularity: containing lobules—rounded homogeneous areas separated by strands of another echogenicity |
| Cysts: abnormal anechoic round or oval structure |
| Calcifications: hyperechoic lesion with acoustic shadowing |
| Ductal criteria |
| Main pancreatic duct dilation: > 3.5 mm in body or > 1.5 mm in tail |
| Dilated side branches: at least three anechoic structures, > 1 mm in width communicating with main pancreatic duct |
| Irregular pancreatic duct: uneven outline of duct |
| Hyperechoic duct wall: at least 50% of length of main pancreatic duct in body and tail with hyperechoic wall |
Sources
- Adapted from The International Working Group for Minimal Standard Terminology in Gastrointestinal Endoscopy. Minimal standard terminology in gastrointestinal endosonography. Dig Endosc 1998;10:159–184; and Catalano MF et al. EUS-based criteria for the diagnosis of chronic pancreatitis: the Rosemont classification. Gastrointest Endosc 2009;69:1251–1261.Standard EUS Criteria for CP
