According to the AAST classification of renal trauma, a blunt renal injury with a laceration extending more than 1 cm into the renal cortex without involvement of the collecting system corresponds to which grade?

• A Grade II
• B Grade V
• C Grade IV
• D Grade III ✓

Explanation

AAST grade III is a parenchymal laceration more than 1 cm deep into the cortex without urinary extravasation. Grade II is a shallow laceration less than 1 cm or a subcapsular haematoma. Grade IV involves the collecting system with urinary leak or a main renal artery or vein injury with contained haemorrhage, and Grade V is a shattered kidney or avulsion of the hilum. Grading depth against collecting system involvement is the discriminator.

Reference: Campbell-Walsh Urology, 12th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.