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FR expression in different histological types
| Negative FR expression | Positive FR expression | ||||
| Histology | Grade 1 | Grade 2 | Grade 3 | Grade 4 | Total cases |
| Benign | 1 | 3 | 3 | 5 | 12 |
| LGSIL | 2 | 4 | 4 | 12 | 22 |
| HGSIL | 7 | 4 | 4 | 7 | 22 |
| Invasive cancer | 9 | 4 | 4 | 8 | 25 |
FR, folate receptor; LGSIL, low grade squamous intraepithelial lesion; HGSIL, high grade grade squamous intraepithelial lesion.
