Table 1. Characteristics of 10 patients examined in this study.
| Case | Age | Menopausal status | Diagnosis at baseline | Diagnosis after the letrozole treatment | Period of the letrozole treatment (weeks) |
|---|---|---|---|---|---|
| 1 |
69 |
Post |
DCIS (ER+) |
DCIS |
15 |
| 2 |
57 |
Post |
DCIS (ER+) |
DCIS |
14 |
| 3 |
74 |
Post |
DCIS (ER+) |
IDC (pT1mic (<1mm)) |
14 |
| 4 |
52 |
Post |
DCIS (ER+) |
DCIS |
4 |
| 5 |
57 |
Post |
DCIS (ER+) |
DCIS |
3 |
| 6 |
62 |
Post |
DCIS (ER+) |
DCIS |
7 |
| 7 |
68 |
Post |
DCIS (ER+) |
DCIS |
10 |
| 8 |
58 |
Post |
DCIS (ER+) |
IDC (pT1a (2mm)) |
27 |
| 9 |
67 |
Post |
DCIS (ER+) |
DCIS |
14 |
| 10 | 72 | Post | DCIS (ER+) | IDC (pT1mic (<1mm)) | 14 |
Abbreviation: IDC=invasive ductal carcinoma.
ER+: case showed >10% of ER-positive cells.