Figure 5 | Scientific Reports

Figure 5

From: Sirolimus-coated Eustachian tube balloon dilatation for treating Eustachian tube dysfunction in a rat model

Figure 5

Fibrotic changes in the cartilaginous portion of the ET after drug-free or SRL-coated ETBD. (a) Histological images showing the ETBD-induced laceration (arrowheads) in the cartilaginous portion of the ET and the fibrotic tissue changes (arrows) that replaced the damaged areas of the cartilaginous portion. (b) Graphs showing the differences in histological findings between the two study groups. **p < 0.05, ***p < 0.001.

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