AAST adrenal organ injury scale

Grade*	Description of injury
I	Contusion
II	Laceration involving only cortex (<2 cm)
III	Laceration extending into medulla (≥2 cm)
IV	>50% parenchymal destruction
V	Total parenchymal destruction (including massive intraparenchymal hemorrhage)
V	Avulsion from blood supply

AAST: American Association for the Surgery of Trauma.
* Advance one grade for bilateral lesions up to grade V.

Reproduced with permission from: Moore EE, Malangoni MA, Cogbill TH, et al. Organ injury scaling VII: cervical vascular, peripheral vascular, adrenal, penis, testis, and scrotum. J Trauma 1996; 41:523. Copyright © 1996 Lippincott Williams & Wilkins. Available at: https://www.aast.org/resources-detail/injury-scoring-scale#adrenal (Accessed on December 10, 2019).

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AAST adrenal organ injury scale