From: Splenic trauma: WSES classification and guidelines for adult and pediatric patients
Grade | Injury description | |
---|---|---|
I | Hematoma | Subcapsular, < 10% surface area |
Laceration | Capsular tear, < 1 cm parenchymal depth | |
II | Hematoma | Subcapsular, 10–50% surface area |
 | Intraparenchymal, < 5 cm diameter | |
Laceration | 1–3 cm parenchymal depth not involving a perenchymal vessel | |
III | Hematoma | Subcapsular, > 50% surface area or expanding |
 | Ruptured subcapsular or parenchymal hematoma | |
 | Intraparenchymal hematoma > 5 cm | |
Laceration | > 3 cm parenchymal depth or involving trabecular vessels | |
IV | Laceration | Laceration of segmental or hilar vessels producing major devascularization (> 25% of spleen) |
V | Laceration | Completely shatters spleen |
Vascular | Hilar vascular injury which devascularized spleen |