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Table 2 Histology of breast metastases

From: Non-primary breast malignancies: a single institution’s experience of a diagnostic challenge with important therapeutic consequences—a retrospective study

Primary histology

Number of patients (%)

Interval (months): primary-secondary (mean)

Lymphoma

18 (38.3 %)

 

 Primary

13

 

 Secondary

5

5–64 (24)

Melanoma

11 (23.4 %)

 

 No primary site

3

 

 Primary side detected

8

4–273 (66)

Ovarian carcinoma

6 (12.8 %)

 

 No history of ovarian carcinoma

1

 

 History of ovarian carcinoma

5

1–43 (15)

Lung carcinoma

6 (12.8 %)

 

 No history of lung carcinoma

4

 

 History of lung carcinoma

2

10–28 (19)

Adenocarcinoma of the colon

3 (6.4 %)

 

 No history of colon carcinoma

1

 

 History of colon carcinoma

2

1–5 (3)

Renal cell carcinoma

1 (2.1 %)

 

 No history of renal cell carcinoma

0

 

 History of renal cell carcinoma

1

2 (−)

Adenocarcinoma of the stomach

1 (2.1 %)

 

 No history of stomach carcinoma

1

 

 History of stomach carcinoma

0

Choriocarcinoma

1 (2.1 %)

 

 No history of choriocarcinoma

 1

 

 History of choriocarcinoma

 0

Total

47 (100 %)