Effect of hydrogen intervention on refractory wounds after radiotherapy: A case report

Figure 2 Outcomes of the patient after hydrogen inhalation therapy in the first 3 wk. A: Deep wound (red arrow) before hydrogen inhalation therapy, with the skin separated from the subcutaneous tissue; B: The wound grew shallower (red arrow), and the skin adhered better to the subcutaneous tissue; C: Wound edge migration was initiated (black arrow), and more blood vessels were visible in the wound bed; D: More migration around the wound edge (black arrow).