Table 1.
CT grading of traumatic splenic injury.12.
| Grade | CT diagnostic criteria |
|---|---|
| I | Subcapsular hematoma < 10% surface area Depth of parenchymal laceration <1 cm Capsular tear |
| II | Subcapsular hematoma = 10%–50% surface area Intraparenchymal hematoma <5 cm Depth of parenchymal laceration = 1–3 cm |
| III | Subcapsular hematoma > 50% surface area Subcapsular or intraparenchymal hematoma ≥5 cm Depth of parenchymal laceration >3 cm |
| IV | With a splenic vascular injury or active bleeding confined within the splenic capsule Parenchymal laceration involving segmental or hilar vessels producing >25% devascularization |
| V | With a splenic vascular injury with active bleeding extending beyond the spleen into the peritoneum Shattered spleen |