The purpose of this study is to compare 3D mammography with digital mammography in women with dense breasts for the detection and evaluation of masses and/or breast cancer.

Inclusion Criteria:

• Females 30 years of age or older.
• Dense Breasts.
• Has undergone clinical two view mammogram and diagnostic breast imaging evaluation.
• Suspicious or palpable mass and scheduled for biopsy.

Exclusion Criteria:

• Pregnant or lactating women.
• Prior personal history of breast cancer.
• Prior breast augmentation with implants or silicon injection. male patients.
• No two view mammogram as part of breast imaging evaluation.
• Breast density of almost entirely fatty/scattered fibroglandular densities.