Figure 2.

Representative mammography and computed tomography (CT) images of a 60-year-old woman with left primary breast cancer (stage pTisN0, DCIS). (A) mammography of craniocaudal image showed a mass in the lateral of the left breast, irregular, and slightly high-density shadows (red arrows). (B) Mammography of mediolateral oblique images showed a mass in the upper quadrant of the left breast, irregular, and slightly high-density shadows, about 21 × 13 mm in size, with rough edges and spicule sign (red arrows). (C) Transverse CT image showed an axillary lymph node with oval shape and presence of fatty hilum, a cortical thickness about 2 mm (red arrows). (D) Coronal CT image showed this lymph node with oval shape and presence of fatty hilum, a long-axis diameter of about 18 mm, and a short-axis diameter of about 8 mm (red arrows). The patient underwent sentinel lymph node biopsy, five lymph nodes were removed and proved to be pathologic negative.