Table 2 American association for the surgery of trauma-organ injury scale classification
From: Surgical treatment features of liver gunshot wound with a dumdum bullet (expanding bullet)
Grade | Injury type | Injury description |
|---|---|---|
I | Hematoma | Subcapsular < 10% surface |
Laceration | Capsular tear < 1 cm parenchymal depth | |
II | Hematoma | Subcapsular 10–50% surface area; intraprenchymal, < 10 cm diameter |
Laceration | 1–3 cm parenchymal depth, < 10 cm in length | |
III | Hematoma | Subcapsular > 50% surface area or expanding, ruptured subcapsular or parenchymal hematoma. Intraprenchymal hematoma > 10 cm |
Laceration | > 3 cm parenchymal depth | |
IV | Laceration | Parenchymal disruption 25–75% of hepatic lobe |
Vascular | Juxtavenous hepatic injuries, i.e., retrohepatic vena cava/centrl major hepatic veins | |
VI | Vascular | Hepatic avulsion |