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Table 1 Patient and tumor characteristics of the study population (n = 23).

From: Magnetic resonance imaging in size assessment of invasive breast carcinoma with an extensive intraductal component

Characteristic

Category

N

%

Tumour diagnosis

Clinical symptoms

5

22

 

Mammography

16

70

 

MRI

2

8

Location of the tumour

Inner quadrant

2

9

 

Outer quadrant

17

74

 

Central

4

17

Preoperative diagnosis of histological core needle biopsy

DCIS

5

21

 

DCIS with invasive carcinoma

14

61

 

Not conclusive

2

9

 

Not performed

2

9

Number of surgical procedures

1

17

74

 

2

5

22

 

3

1

4

Final treatment

Breast-conserving surgery

2

9

 

Mastectomy

21

91

Axillairy staging

Sentinel lymph node biopsy

10

44

 

Axillairy lymph node dissection

10

44

 

Sentinel lymph node biopsy followed by axillairy

  
 

lymph node dissection

3

13

Grading of DCIS

Grade I, well differentiated

0

0

 

Grade II, moderately differentiated

8

35

 

Grade III, poorly differentiated

15

65

Grading of invasive carcinoma

Grade I, well differentiated

8

35

 

Grade II, moderately differentiated

6

26

 

Grade III, poorly differentiated

9

39

Size of invasive carcinoma

≤ 1 mm

4

17

 

1–10 mm

8

35

 

11–20 mm

4

17

 

21–30 mm

5

22

 

31–40 mm

1

4

 

41–50 mm

1

4

Percentage EIC

<50%

5

22

 

50%–75%

6

26

 

>75%

12

52

  1. DCIS: ductal carcinoma in situ; EIC extensive intraductal component