Table 2

Expression of CKs, vimentin, and EGFR in DCIS and IDC

CK8CK14CK18VimentinEGFRTotal case
CK, cytokeratin; DCIS, ductal carcinoma in situ; EGFR, epidermal growth factor receptor; IDC, infiltrating ductal carcinoma.
Stem cell phenotype
    DCIS+++++8
    IDC+++++5
Luminal cell phenotype
    DCIS+++/−27
    IDC+++/−17
Not classifiable
    DCIS++++/−+/−2
    IDC++++/−+/−5