Table 1.

Patient clinico-pathological characteristics according to ECM classification.

Characteristics	ECM3 (N = 22)	Non-ECM3 (N = 20)
Median age
(years, range)	49 (36–78)	62 (47–82)
Tumor size (cm)
<2 cm	14 (67%)	11 (55%)
≥2 cm	7 (33%)	9 (45%)
Nodal Status
N0	4 (20%)	7 (35%)
N+	16 (80%)	13 (65%)
ER status
Negative	2 (53%)	3 (57%)
Positive	20 (47%)	17 (43%)
PGR status
Negative	2 (9%)	8 (40%)
Positive	20 (91%)	12 (60%)
HER2 status
Negative	16 (73%)	17 (85%)
Positive	6 (27%)	3 (15%)
Grade
I-II	12 (55%)	9 (45%)
III	10 (45%)	11 (55%)
Chemotherapy treatment
No	2 (13%)	4 (20%)
Yes	13 (87%)	12 (80%)