Table 1.

Characteristics of the breast tumors

N (%)
Infiltrating carcinomas103
Histologic type
    Ductal97 (94.2)
    Lobular6 (5.8)
Histologic grade
    13 (2.9)
    256 (54.4)
    344 (42.7)
pT
    133 (32.0)
    264 (62.2)
    36 (5.8)
pN
    050 (48.5)
    137 (35.9)
    26 (5.8)
    310 (9.8)
Hormone receptors
    ER/PR+75 (72.8)
HER2/neu
    Overexpression23 (22.3)
    Amplification21 (20.4)
Ki67 (MIB1)
    >20%29 (28.2)
    ≤20%74 (71.8)