AAST pancreas injury scale

Grade*	Injury type	Description of injury^¶
I	Hematoma	Minor contusion without duct injury
I	Laceration	Superficial laceration without duct injury
II	Hematoma	Major contusion without duct injury or tissue loss
II	Laceration	Major laceration without duct injury or tissue loss
III	Laceration	Distal transection or parenchymal injury with duct injury
IV	Laceration	Proximal^Δ transection or parenchymal injury involving ampulla
V	Laceration	Massive disruption of pancreatic head

AAST: American Association for the Surgery of Trauma.
* Advance one grade for multiple injuries up to grade III.
¶ Based on most accurate assessment at autopsy, laparotomy, or radiologic study.
Δ Proximal pancreas is to the patients' right of the superior mesenteric vein.

Reproduced with permission from: Moore EE, Cogbill TH, Malangoni MA, et al. Organ injury scalin, II: Pancreas, duodenum, small bowel, colon, and rectum. J Trauma 1990; 30:1427. Copyright © 1990 Lippincott Williams & Wilkins. Available at: https://www.aast.org/resources-detail/injury-scoring-scale#pancreas (Accessed on December 10, 2019).

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AAST pancreas injury scale