Table 2 American Association for the Surgery of Trauma organ injury severity scale for the kidney
From: Autosomal dominant polycystic kidney disease and minimal trauma: medical review and case report
Grade | Type | Description |
|---|---|---|
I | Contusion | Microscopic or gross hematuria, urologic studies normal |
Hematoma | Subcapsular, nonexpanding hematoma without parenchymal laceration | |
II | Hematoma | Non-expanding peri-renal hematoma confined to renal retroperitoneum |
Laceration | Laceration < 1 cm depth of renal cortex without urinary extravasation | |
III | Laceration | Laceration > 1 cm depth of renal cortex without collecting system rupture or urinary extravasation |
IV | Laceration | Parenchymal laceration extending through renal cortex, medulla, and collecting system |
Vascular | Main renal artery or vein injury with contained hemorrhage | |
V | Laceration | Completely shattered kidney |
Vascular | Avulsion of renal hilum, devascularizing the kidney |