Table 4

Comparison of ERα status of the primary tumour and metastatic lesion§

Author
N
Primary tumour ER + %
ER discordance rate (%)
Site of metastasis
Change ER+/ER- N (%)
Change ER-/ER+ N (%)

Nomura et al. [35]
42
64
10 (24)
LR
10 (24)
0
Kuukasjarvi et al. [25]
50
70
12 (24)
LR, MET
12 (24)
0
Lower et al. [36]
200
58
60 (30)
MET
39 (20)
21 (11)
Li et al. [37]
83
76
24 (29)
LR, MET
83 (16)
11 (13)
Fernandez et al. [27]
26
65
(35)
LN
6 (23)
0
Raemaekers et al. [38]
75
58
14 (19)
LR, LN
8 (10)
6 (8)
Zheng et al. [26]
52
54
(10)
LN
3 (10)
0
Ditsch et al. [16]
17
64
9 (53)
DTC
9 (53)
0
Broom et al. [28]
62
18
11 (18)
DTC, LN, MET
6 (10)
5 (8)
Our study
107
82
77 (82)
BM
76 (71)
1 (1)

§distant metastasis, local recurrence, lymph nodes

BM = bone marrow; DTC = disseminated tumour cells; LN = lymph nodes; LR = local recurrence; MET = metastatic lesion.

Fehm et al. Breast Cancer Research 2008 10:R76   doi:10.1186/bcr2143