Figure 10 One-month postoperative case shows: (a, b) Merocel packed side shows hyperplastic respiratory epithelium with thickened basal lamina (↑) and numerous goblet cells (g). The propria shows mild angiogenesis (*) and stimulated glandular activities (▲). (c, d) Surgicel packed side shows classical respiratory epithelium with goblet cells (g) resting on slightly thickened basal lamina (↑). The lamina propria shows edema with moderate angiogenesis (bv). Hematoxylin and eosin stain Mic. magnification, a, b, c, ×100; d and inset, ×400.