60-year-old female patient with biopsy-proven left breast IDC on chemotherapy. UNILATERAL LEFT DIAGNOSTIC MAMMOGRAM:Three standard views of the left breast were performed digitally and reviewed with the aid of R2 CAD 9.3. The breast parenchyma is almost entirely fatty(BiRads Density Category A), unchanged in pattern and distribution. Again seen is in irregular mass with spiculated margins in the left lower outer breast that measures 1.4 x 1.7 cm on CC view, previously 1.8 x 2.1 cm when measured similarly. A percutaneous clip is noted along the posterior margin of the mass. Few benign calcifications are noted distant from the mass.In the left axilla there is a percutaneous clip immediately posterior to a lymph node that measures 0.7 x 1.0 cm, previously measuring 1.4 x 1.9 cm.LEFT BREAST AND AXILLARY ULTRASOUND:In the 4:00 position 5 cm from the nipple there is an irregular hypoechoic mass that measures 1.5 x 1.4 x 1.8 cm, previously 2.2 x 2.2 cm on ultrasound dated 09/18/2015.In the left axilla there are two abnormal appearing lymph nodes. One lymph node measures 0.8 x 0.7 x 0.8 cm. The previously biopsied lymph node with posterior clip measures 1.6 x 0.5 x 0.6 cm, previously measuring up to 1.6 cm on 10/08/2015. However, this lymph node node is decreased in volume compared to prior.
Interval decrease in size of known left breast cancer as well as interval decrease in size of left axillary lymph nodes. Findings were discussed with the patient.BIRADS: 6 - Known cancer.RECOMMENDATION: T - Take Appropriate Action - No Letter.