Molecular classification of breast cancer is based on which of the following
Gene expression profiling
Expression of hormone receptors like ER, PR and HER-2 neu
Histology
Response to chemotherapy
Refer Robbins page no 1061 Invasive carcinoma can be divided based on molecular and morpholog characteristic into several clinically impoant subgroups. Breast carcinoma have a wide variety of morphological apperance.One third can be classified morphologically into special histologic types some of which are strongly assosciated with clinically relevant biologic characteristic
Breast