Figure 11 One-month postoperative case shows: (a, b) Merocel packed side with hyperplastic respiratory epithelium with numerous goblet cells (g) resting on thickened basal lamina (↑). The lamina propria showed excessive fibroblast (↑↑) and excessive glandular activities (▲). (c, d) Surgiflo packed side with defective epithelial covering (↑). The lamina propria shows excessive fibroblastic activities with mononuclear cellular infiltration. Hematoxylin and eosin stain Mic. magnification, a and c, ×100; b and d, ×400.