Gene Expression in Tumor Tissue From Women Undergoing Surgery for Breast Cancer or Core Biopsy of the Breast
Gene Expression in Tumor Tissue From Women Undergoing Surgery for Breast Cancer or Core Biopsy of the Breast
RATIONALE: Studying samples of breast tissue in the laboratory may help doctors learn more
 about the genes and proteins found in breast tissue.

 PURPOSE: This phase I trial is studying genes and proteins in breast tissue from women
 undergoing surgery for breast cancer or core biopsy of the breast.
OBJECTIVES:

 -  Assess tumor gene expression information from women undergoing surgery for breast cancer
 or core biopsy sampling of the breast.

 OUTLINE: This is a pilot study.

 Tumor tissue is collected and analyzed for tumor gene expression by DNA microarray analysis
 for research studies.

 PROJECTED ACCRUAL: A total of 100 patients will be accrued for this study.
DISEASE CHARACTERISTICS:

 -  Undergoing surgery for breast cancer OR core biopsy sampling of the breast

 PATIENT CHARACTERISTICS:

 -  Not specified

 PRIOR CONCURRENT THERAPY:

 -  Not specified