Table 1: Clinicopathological characteristics.

Characteristic

n=57

(%)

Age at diagnosis

Median (Range)

<= 40

40-49

>=50

 

56 (28-87)

3

39

15

 

(5)

(68)

(27)

Diagnostic features

Mass-like lesion

Microcalcification

 

17

40

 

(30)

(70)

Pre-operative diagnosis

C5

B3

DCIS

MIDC

 

10

2

44

1

 

(18)

(3)

(77)

(2)

Nuclear Grade of invasive foci

1

2

3

 

11

21

25

 

(19)

(37)

(44)

Margins

Negative

Close (DCIS)

 

41

16

 

(72)

(28)

ER Status

Positive

Negative

Unknown

 

23

18

16

 

(40)

(32)

(28)

PR Status

Positive

Negative

Unknown

 

14

23

20

 

(25)

(40)

(35)

HER2 Status

Positive

Negative

Unknown

 

20

17

20

 

(35)

(30)

(35)

Ki67 proliferation index

<20%

>=20%

Unknown

 

15

23

19

 

(26)

(40)

(33)

ER: Estrogen Receptor; PR: Progesterone Receptor; HER2: Human Epidermal Growth Factor Receptor 2; DCIS: Ductal Carcinoma In Situ; MIDC: Microinvasive ductal carcinoma.