Prospective, serially-recruited, blinded and unblinded, validation study to test that the adjunctive combination of the SoftScan with x-ray mammography provides diagnostic accuracy that is significantly better than x-ray mammography alone. Healthy volunteers and patients scheduled for tissue biopsy/excision of a suspicious breast lesion will be enrolled. Reader Studies will be performed in which interpreting investigators will perform blinded mammography interpretations, and reinterpretations of mammography and SoftScan interpretations. Diagnostic accuracy will be calculated using tissue histopathology as the reference standard.

Inclusion Criteria:

Women between the ages of 20 and 80 years of age, who are either healthy or who are scheduled to undergo a tissue biopsy of surgical excision of a suspicious breast lesion for histopathologic diagnosis.

Exclusion Criteria:

For the Healthy Volunteers Population,

• subjects with a history of minor breast procedures involving either breast;
• subjects with a history of major breast procedures involving either breast;
• subjects with a history of significant acute breast abnormalities involving either breast; and
• subjects with a history of significant chronic breast abnormalities involving either breast; and

For Referred For Biopsy Population,

• subjects with a history of minor breast procedures involving either breast that were performed within 6 months prior to enrollment or which have not completed active healing at the time of enrollment;
• subjects with a history of major breast procedures involving either breast;
• subjects with a history of significant acute breast abnormalities involving either breast which have not completed active healing or resolution within 6 months prior to enrollment; and
• subjects with a history of significant chronic breast abnormalities involving either breast.