Table 2:

CT/MRI/MRCP Grading of CP based on Cambridge classification

	Equivocal (I)	Mild (II)	Moderate (III)	Marked (IV)
CT/MRI Scan	One of the following: main duct enlarged (2–4 mm), slight gland enlargement, heterogenous parenchyma, small cavities (<10mm), irregular ducts, focal pancreatitis, increased echogenicity of main duct wall, irregular head/body contour	>=2 of the following: enlarged main duct (2–4mm), gland enlargement, heterogenous parenchyma, small cavities (<10mm), irregular ducts, focal acute pancreatitis, increased echogenicity of main duct wall, irregular head/body contour	Cannot distinguish from mild	Moderate changes plus >=1 of the following: large cavities (>10mm), gland enlargement, intraductal filling defects/calculi, duct obstruction, stricture or gross irregularity
MRCP	<3 abnormal side branch changes	>=3 abnormal side branch changes	Abnormal main duct; >3 abnormal side branches	Moderate changes plus 1 of the following: obstruction, filling defects, severe irreg ularity/di lation of main duct

Adapted from Conwell, Darwin L., et al. “American Pancreatic Association Practice Guidelines in Chronic Pancreatitis: evidence-based report on diagnostic guidelines.” Pancreas 43.8 (2014): 1143.