Table 1.

Histopathological scoring criteria for pancreatic injury

Score	Edema	Acinar Necrosis	Inflammatory Infiltration
0	Absent	Absent	0–5 white blood cells (WBCs) per high-power field (HPF)
1	Diffuse expansion of lobular septa	1–4 necrotic cells per HPF	6–15 WBCs per HPF
2	Diffuse and extensive expansion of interlobular spaces	5–10 necrotic cells per HPF	16–25 WBCs per HPF
3	Diffuse expansion of acinar septa	11–16 necrotic cells per HPF	26–35 WBCs per HPF
4	Diffuse expansion of intercellular spaces	> 16 necrotic cells per HPF	Extensive necrosis with confluence > 35 WBCs per HPF, or confluent microabscesses

The degree of acinar cell necrosis and inflammatory infiltration was calculated as the average of every 10 fields of view under high-power field (HPF, ×200)