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Table 1 Pathological and immunohistochemical characteristics of tumours. For 8 patients, due to complete response to NAC, these characteristics refers to the pre-NAC core needle biopsy

From: Relevance of breast MRI in determining the size and focality of invasive breast cancer treated by mastectomy: a prospective study

 

IDC

n = 80

ILC

n = 17

MC

n = 2

IPC

n = 1

MPC

n = 1

SBR grade

 1

9

5

0

0

0

 2

44

9

2

1

0

 3

27

3

0

0

1

ER/PR

 Positives

61

17

2

1

0

 Negatives

19

0

0

0

1

HER2

 0

51

13

2

0

0

 1+

9

2

0

0

0

 2+ NA

8

1

0

1

0

 2+ A

1

1

0

0

0

 3+

11

0

0

0

1

Ki67

 <10%

9

6

1

0

0

 10–30%

44

11

0

1

1

 >30%

26

0

1

0

0

 NR

1

0

0

0

0

  1. ER oestrogen-receptor, PR progesterone-receptor, IDC invasive ductal carcinoma, ILC invasive lobular carcinoma, MC mixed carcinoma (combining IDC and ILC), IPC invasive papillary carcinoma, MPC invasive micropapillary carcinoma