Table 4 Oestrogen receptor status of the primary DCIS and the subsequent invasive episodes, either ipsilateral or contralateral.
From: The clinical significance of oestrogen receptor expression in breast ductal carcinoma in situ
ER status within the primary DCIS that had subsequent invasive episode (n = 69, 10%) | ER status within the invasive disease (ipsilateral and/or contralateral) | ||
|---|---|---|---|
Positive | Negative | Unknown | |
Positive (n = 55, 12%) | 46 (92% of valid cases) | 4 (8% of valid cases) | 5 |
Negative (n = 14, 8%) | 6 (43%) | 8 (57%) | 0 |
