Alcian blue staining and gross specimen after FGF injection in chronic vocal fold scar model of rabbit.

Alcian blue staining of the vocal folds injected with (left) phosphatebuffered saline (PBS) (0.1ml) and (right) fibroblast growth factor (FGF) (10 μg in 0.1mL reconstituted solution). Injection was performed 3 months after the scar-inducing injury. Gross specimen of harvested larynx of rabbit is shown and decreased fibrotic scar after FGF injection (right) was seen.