Table 3

Distribution of breast tumor characteristics among sporadic breast cancer cases

Tumor characteristics

Sporadic breast cancer cases N (%)


Histologic type

Ductal

444 (84.9)

Lobular

62 (11.9)

Special-type

17 (3.2)

Missing

7

Tumor size

≤ 20 mm

349 (67.2)

21-50 mm

152 (29.3)

> 50 mm

18 (3.5)

Missing

11

Histopathologic grade

1

89 (17.1)

2

227 (43.6)

3

205 (39.3)

Missing

9

Tubular formation

1

33 (6.3)

2

143 (27.5)

3

344 (66.2)

Missing

10

Nuclear atypia

1

16(3.1)

2

267(51.3)

3

237(45.6)

Missing

10

Mitotic index

1

219(42.3)

2

141(27.2)

3

158(30.5)

Missing

12

Vascular invasion

No

403(79.3)

Yes

105(20.7)

Missing

22

Lymph node involvement

No

288(57.5)

Yes

213(42.5)

Missing

29

HR status

ER-PR-

83(15.7)

ER + and/or PR+

444(84.3)

Missing

3

HER2 status

HER2-

449(87.7)

HER2+

63(12.3)

Missing

18


Cerne et al. BMC Cancer 2012 12:105   doi:10.1186/1471-2407-12-105

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