fig4

Figure 4. A 24-year-old male patient with a full-thickness chemical burn (sulfuric acid) to the left upper limb, involving creases. A: Initial appearance, with an adhered and hard eschar; B: formation of a uniform and non-hypertrophic granulation tissue. It was red and had no discharge following two escharectomies. It was covered temporarily with skin allografts; C: placement of split-thickness skin grafts transversely soon after surgery; D: appearance at postoperative month 1