The photo shows a deep (third-degree) alkali burn from cleaning products. Note the leathery, dead appearance of the dermis and visible thrombosed vessels (which are not always this obvious).
From: Vercruysse GA, Alam HB, Martin MJ, et al. Western Trauma Association critical decisions in trauma: Preferred triage and initial management of the burned patient. J Trauma Acute Care Surg 2019; 87:1239. DOI:
10.1097/TA.0000000000002348. Copyright © 2019 American Association for the Surgery of Trauma. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.