Table 2. Histological Scoring for Acute Pancreatitis.

Condition	Score	Description
Edema	0	Absent
	1	Diffuse expansion of interlobar septa
	2	1+ diffuse expansion of interlobular septa
	3	2+ diffuse expansion of interacinar septa
	4	3+ diffuse expansion of intercellular septa
Inflammation	0	Absent
	1	Around ductal margin
	2	In parenchyma (.50% of lobules)
	3	In parenchyma (51%–75% of lobules)
	4	In parenchyma (.75% of lobules)
Vacuolization	0	Absent
	1	Periductal (.5%)
	2	Focal (5%–20%)
	3	Diffuse (21%–50%)
	4	Severe (.50%)
Necrosis	0	Absent
	1	1–4 necrotic cells/HPF
	2	5–10 necrotic cells/HPF
	3	11–15 necrotic cells/HPF
	4	.16 necrotic cells/HPF