47 year old female with left breast invasive ductal carcinoma receiving chemotherapy. Patient presents to assess lesion response to therapy. A targeted left ultrasound was performed in the area of known breast cancer at the 3:00 position, approximately 1 cm from the nipple. There has been interval decrease in size of the hypoechoic mass, which does not have significant internal vascularity, now measuring 13 x 10 x 15 mm, previously 21 x 15 x 23 mm. A biopsy clip is noted within the mass.
Interval decrease in size of the left breast mass compatible with biopsy-proven invasive ductal carcinoma.BIRADS: 6 - Known cancer.RECOMMENDATION: X - No Letter.