FIGURE LEGEND
Figure 1. (A) Skin findings upon admission. Dark red erythema was observed from both lower eyelids to the neck, and erosion with bloody scabs was observed on the lips. Blisters and erythema with crusting were scattered from the neck to the upper navel. (B) Chest X-ray showed subcutaneous emphysema, bilateral mediastinal emphysema, and decreased permeability in the bilateral middle and lower lung fields. (C) Chest CT showed ground glass-like shadows in both lung fields, and the area only below the pleura was spared. (D) Pathological findings of lung tissue (hematoxylin-eosin staining, ×400). Collagen fibers proliferate in highly thickened vesicles, fibroblast proliferation in the airspace, extensive granulomatous scarring with interstitial fibrosis, and post-bleeding changes were observed.