All of the medical illustrations on this site were done by Mr.Craig Luce specifically for Urologic Multimedia Inc.
Renal Trauma
Avulsion at the ureteropelvic junction is a major renal injury often associated with a large urinoma. This is considered a grade V injury.
The shattered kidney contains multiple deep lacerations often extending into the collecting structures and essentially separating the kidney into multiple fragments. This is a gradeV injury.
Contained injury to the renal hilar vessels without evidence of devascularization of the kidney is considered a grade IV injury
This is a grade IV injury in which the laceration extends into the collecting system. This results in urine extravasation as well as hematoma.
A laceration greater than 1 cm in length, but not extending into the collecting structures is a grade III lesion. Hematoma is often present, but no extravasation of urine.
A parenchymal laceration less than 1 cm in length is considered a grade II lesion. Varying degrees of perinephric hematoma may be present.
A perirenal hematoma without obvious laceration is considered a grade II lesion.
A subcapsular hematoma without apparent laceration is considered a grade I lesion.
Major injury to the renal hilar vessels with devascularization of the kidney is a grade V injury.
Although there are many classifications for renal trauma in the literature, this classification or a similar classification is most commonly used in major surgical and radiologic textbooks.