TABLE 1.
Clinicopathological characteristics of molecular subtypes of Paget's disease of the breast (PDB).
| Characteristic | Luminal (n = 9) | HER2‐enriched (n = 15) | Basal‐like (n = 2) | Total (n = 26) | p‐value |
|---|---|---|---|---|---|
| Age (years) | |||||
| ≤50 | 2 | 6 | 0 | 7 | 0.553 |
| >50 | 7 | 9 | 2 | 19 | |
| Breast carcinoma | |||||
| DCIS | 2 | 9 | 0 | 11 | 0.087 |
| IDC | 7 | 6 | 2 | 15 | |
| Lymph node status | |||||
| Positive | 6 | 2 | 1 | 9 | 0.020 |
| Negative | 3 | 13 | 1 | 17 | |
Note: For patients with bilateral breast carcinoma, the frequency of axillary lymph node metastasis of PDB in different molecular subtypes was significantly different only information on the side with PDB is listed. For patients with recurrence, only information on the first onset was included.