Age:

・ <50 years

・ >50 years

18 (28.2%)

46 (71.8%)

Family history:

・ Negative

・ Positive

58 (15.6%)

6 (9.3%)

Symptomatology:

・ Lump

・ Ulcer

・ Gynecomastia

・ Bony aches

50 (78.1%)

8 (12.5%)

4 (6.3%)

2 (3.1%)

Site:

・ Retroareolar

・ Upper outer quadrant

46 (71.9%)

18 (28.1%)

Side & Bilaterality:

・ Bilateral

・ unilateral

§ Right

§ Left

4 (6.2%)

60 (93.8%)

26 (40.6%)

38 (59.4%)

HER-2:

・ Positive

・ Negative

16 (25%)

48 (75%)

Molecular subtypes:

・ Luminal A

・ Luminal B

・ HER2 overexpression

・ Basal like (Triple negative)

48 (75%)

12 (19%)

4 (6%)

0

T-stage:

・ T1

・ T2

・ T3

・ T4

4 (6.2%)

28 (43.7%)

8 (12.5%)

24 (37.5%)

N-stage:

・ pN0

・ pN1

・ pN2

・ Missing

22 (34.3%)

18 (28.1%)

4 (6.2%)

20 (31.2%)

M-stage:

・ M0

・ M1

50 (78.1%)

16 (25%)

AJCC Staging:

・ Stage I

・ Stage II

・ Stage III

・ Stage IV

4 (6.2%)

22 (34.3%)

22 (34.3%)

16 (25%)