Table 1 AAST-scale and modified scale for classification of spleen injuries.

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