This patient suffered severe full thickness burns and the formation of an eschar. This requires the need for an escharotomy, which is a surgical incision into necrotic tissue due to a severe, full-thickness (third-degree) burns. In such burns, both the epidermis and dermis are destroyed along with sensory nerves present in the dermis. The tough leathery tissue remaining after a full-thickness burn is called eschar. The procedure is sometimes necessary to prevent edema from generating sufficient interstitial pressure to impair capillary filling, causing ischemia. Due to the tissues inelastic nature it can also be further restrictive to breathing!