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.
