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Table 1 Patient demographics and clinical data

From: Breast cancer: comparison of quantitative dual-layer spectral CT and axillary ultrasonography for preoperative diagnosis of metastatic axillary lymph nodes

Patient demographics

Number of patients

34

Number of axillae

36

Age (years mean ± standard deviation)

60.3 ± 15.7

Side

 Right

18

 Left

14

 Bilateral

2

Patient history

 Primary breast cancer

21

 Recurrent ipsilateral breast cancer

9

 Previous contralateral breast cancer

4

Type of breast cancer

 Invasive ductal carcinoma

29

 Invasive lobular carcinoma

2

 Combined

2

 Apocrine carcinoma

1

Oestrogen receptor-positive tumour

 Yes

26

 No

8

HER2-positive tumour

 Yes

7

 No

27

Previous ipsilateral radiotherapy

 Yes

6

 No

28

Previous adjuvant chemotherapy

 Yes

7

 No

27

Sentinel lymph node biopsy

29

 Metastatic

16

 Non-metastatic

13

Axillary lymph node dissection

7

 Metastatic

7

 Non-metastatic

0

  1. HER2 Human epidermal growth factor receptor 2