Case Report
Renal Trauma: Case Reports and Overview
Table 1
AAST classification of renal injuries [
9].
| Grade | Type of Injury | Description |
|
I | Normal contusion | Microscopic or gross hematuria with normal urologic findings | Hematoma | Nonexpanding subcapsular hematomas with no laceration |
|
II | Hematoma | Nonexpanding perinephric (perirenal) hematomas confined to the retroperitoneum | Laceration | Superficial cortical lacerations less than 1 cm in depth without collecting system injury |
| III | Laceration | Renal lacerations greater than 1 cm in depth without collecting system injury |
|
IV | Laceration | Renal lacerations extending through the renal cortex, medulla, and collecting system | Vascular injury
| Injuries involving the main renal artery or vein with contained hematoma, segmental infarctions without associated lacerations |
|
V | Laceration | Shattered kidney, ureteropelvic junction avulsions | Vascular injury | Complete laceration (avulsion) or thrombosis of the main renal artery or vein that devascularizes the kidney |
|
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