AAST Grade | Injury | Injury Description | AIS-98* Grade |
---|---|---|---|
I |
hematoma laceration |
subcapsular, < 10% surface capsular tear, < 1 cm |
2 2 |
II |
hematoma laceration |
subcapsular, 10-50% surface; intraparenchymal hematoma, < 10 cm in diameter 1-3 cm deep, < 10 cm long |
2 2 |
III |
hematoma laceration |
subcapsular, > 50% surface; intraparenchymal hematoma, > 10 cm > 3 cm parenchymal |
3 3 |
IV | laceration | parenchymal disruption involving 25-75% of spleen | 4 |
V |
laceration vascular |
parenchymal disruption involving > 75% of spleen splenic venous injuries |
5 5 |
VI | vascular | splenic avulsion | 6 |