Figure 2. Histopathological findings. (A) Macroscopic image; (B) hematoxylin and eosin staining ×40; (C) hematoxylin and eosin staining ×40; (D) estrogen receptor staining; (E) progesterone receptor staining. (A) Macroscopically, the tumor was a well-defined, solid mass measuring 2.5×2.2 cm in size (black arrows) with wide extension in the direction of the left papillary side (white arrow). Microscopic findings revealing (B) invasive ductal carcinoma with (C) wide intraductal spreading. The tumor cells are strongly positive for (D) estrogen receptors and (E) almost negative for progesterone receptors.