Classification of splenic rupture (splenic laceration) into 5 types according to severity by American Association of the Surgery of Trauma.
| Severity |
Capsular tear, parenchymal injury |
Hematoma (bruise) |
| Type 1 |
- Isolated capsular tears without acute bleeding
- Parenchymal injury <1 cm
|
- Subcapsular hematoma(bruise under the capsule);spread < 10% of the surface, not increasing.
|
| Type 2 |
- Capsular rupture with acute bleeding
- Parenchymal injury 1-3 cm deep (without injury to splenic hilus or segmental arteries)
|
- Subcapsular hematoma;spread to 10-50% of the surface, not increasing.
or
- Intraparenchymal hematoma(bruise within organ tissue) with diameter < 2 cm, not increasing.
|
| Type 3 |
- Parenchymal injury >3 cm deep or involving segmental arteries
|
- Subcapsular hematoma;spread > 50% of the surface or increasing.
or
- Ruptured subcapsular hematoma with active bleeding.
or
- Intraparenchymal hematoma(bruise within organ tissue) with diameter > 2 cm or increasing.
|
| Type 4 |
- Parenchymal injury involving segmental or hilar vessels with devascularization (disruption of vascular supply) of >25% of the spleen
|
- Ruptured intraparenchymatous hematoma with active bleeding.
|
| Type 5 |
- Complete disruption of the organ/rupture of the organ in the splenic hilus with devascularization
|