Numbers of CD44 positive and negative cases among the different categories of papillary lesions
| Types | Subtypes | CD44 positive | CD44 negative | Total |
|---|---|---|---|---|
| DCIS, ductal carcinoma in situ. | ||||
| Papilloma | 45 (45%) | 56 (55%) | 101 | |
| Papillary carcinoma | Papillary DCIS | 3 (7%) | 38 (93%) | 41 |
| DCIS involving papillomas | 1 (9%) | 10 (91%) | 11 | |
| Invasive papillary carcinoma | 1 (17%) | 6 (83%) | 7 | |









