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Table 2 Site of biopsy of metastatic lesions and number and type of treatments for advance setting

From: Comparison of tumor microenvironment in primary and paired metastatic ER+/HER2- breast cancers: results of a pilot study

Patients characteristics

Metastatic cases (n = 18)

n

(%)

Site of biopsy

lymph node

4

(22.2)

liver

4

(22.2)

bone

3

(16.6)

skin

1

(5.6)

pleura

2

(11.1)

ovary

2

(11.1)

lung

1

(5.6)

breast

1

(5.6)

Max/last line of palliative CT

No CT

11

(61.1)

III line

2

(11.1)

  ≥ IV line

5

(27.8)

Max/last line of palliative HT

No HT

7

(38.9)

I line

6 (2a)

(33.3)

II line

3 (1a)

(16.7)

III line

2 (1a)

(11.1)

Max/last Line of treatment for advanced disease

I

6 (3a)

(33.3)

II

3 (1a)

(16.7)

III

3 (2a)

(16.7)

IV-IX

6 (2a)

(33.3)

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