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Histopathologic findings of nasolacrimal duct biopsy according to CIS grading.
| CIS grade Finding |
Mild |
Moderate |
Severe |
P value | |||
|---|---|---|---|---|---|---|---|
| N | % | N | % | N | % | ||
| Cellular infiltrates | 28 | 56.0 | 15 | 30.0 | 7 | 14.0 | 0.08 |
| Fibrosis | 9 | 18.0 | 10 | 20.0 | 31 | 62.0 | 0.07 |
| Capillary proliferation | 32 | 64.0 | 16 | 32.0 | 2 | 4.00 | 0.06 |
| Chronic inflammatory signs | 7 | 14.0 | 18 | 36.0 | 25 | 50.0 | 0.86 |
P value was calculated according to Wilcoxon test, p > 0.05 = non-significant.
