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Table 6 Immunohistochemical staining of cytokeratins in tumor and normal tissues
| Antibodies | Tumors | Normal tissues (n = 22) | Fisher's pvalue | |
|---|---|---|---|---|
| Cytokeratin 5/6 | Ductal carcinomas (n = 80) | 9 (11.2%) | 22 (100%) | <0.0001 |
| Lobular carcinomas (n = 29) | 3 (10.3%) | <0.0001 | ||
| Cytokeratin 17 | Ductal carcinomas (n = 80) | 8 (10%) | 22 (100%) | <0.0001 |
| Lobular carcinomas (n = 29) | 2 (6.9%) | <0.0001 | ||
