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Baltimore classification of splenic trauma according to CT findings: CT Severity Index
| Grade | I (cm) | II (cm) | III (cm) | IVa | IVb |
|---|---|---|---|---|---|
| Subcapsular hematoma (thick) | < 1 | 1–3 | > 3 | Ruptured | |
| Capsular laceration (depth) | < 1 | 1–3 | > 3 | ||
| Parenchymal hematoma (diameter) | < 1 | 1–3 | > 3 | ||
| Bleeding | Parenchymal and subcapsular; shattered spleen | Peritoneal | |||
| Vessels | PSA; AVF |
