Figure 3.

Representative mammography and MDCT images of a 45-year-old woman with left primary breast cancer (stage pT2N1). (A) Mammography of craniocaudal image showed a mass in the lateral of the left breast, lobulated, and slightly high-density shadows, about 56 × 36 mm in size, with rough edges and part of the edge was fuzzy (red arrows). (B) Mammography of mediolateral oblique images showed a mass in the upper quadrant of the left breast, lobulated, and slightly high-density shadows (red arrows). (C) Transverse CT image showed an axillary lymph node with round shape and non-fatty hilum, a cortical thickness about 11 mm (red arrow). (D) Coronal CT image showed this lymph node with round shape and no fatty hilum, a long-axis diameter of about 15 mm, and a short-axis diameter of about 13 mm (red arrows). The patient underwent axillary lymph node dissection, 15 lymph nodes were removed, and two lymph nodes were proved to be pathologic positive.