574260.fig.003a
(a)
574260.fig.003b
(b)
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(c)
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(d)
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(e)
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(h)
Figure 3: In the sham group, the normal histologic structure is visualized ((a)-(b)). The corrosive burn group demonstrates a constricted lumen (double arrow) and increased submucosal connective tissue (★), ((c)-(d)). And also, the prednisolone-treated group demonstrates persistent histological changes with increased submucosal connective tissue ((e)-(f)) like the corrosive burn group. The BAPN-treated group demonstrates histological findings that are similar to the sham group ((g)-(h)). All the samples were stained with Azan and magnifications are ×10 for (a), (c), (e), and (g) and ×40 for (b), (d), (f), and (h).