Post-Mastectomy Surveillance to Detect Recurrence in Breast Cancer Patients

The investigator hypothesizes that surgeon-directed ultrasound is a feasible, accurate, and cost-effective strategy for local recurrence surveillance in breast cancer patients after mastectomy. Toward examining these hypotheses, the investigators propose the following Specific Aims: Aim I: To determine the number of breast cancer recurrences following mastectomy detected by surgeon-performed ultrasound. Aim II: To determine the sensitivity and specificity of surgeon-performed ultrasound for the detection of post-mastectomy breast cancer recurrence. Aim III: To estimate the cost of performing surgeon-directed ultrasound for the detection of post-mastectomy breast cancer recurrence from the perspective of a third party payer relative to standard surveillance alone.