PMC6026916_01
Mammogram showing a round mass with well-defined, irregular margins in the superior lateral quadrant of the right breast.
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Several axillary lymph nodes could be observed on the right side, the largest being ~1.9 cm in diameter (Figure 1).
Breast ultrasound demonstrated a hypoechoic mass measuring ~3.7x2.6 cm in the superior lateral quadrant of the right breast.
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Breast ultrasound clearly demonstrated a hypoechoic mass measuring ~3.7x2.6 cm in the superior lateral quadrant of the right breast (Figure 2).
Immunohistochemical results for the resected tumor tissue.. Notes: (A) Hematoxylin-eosin staining; (B) Myeloperoxidase; (C) CD43; and (D) human leukocyte common antigen. Magnification: 20x.
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Immunohistochemical examination demonstrated that the tumor was strongly positive for myeloperoxidase, CD43, and human leukocyte common antigen (Figure 3); weakly positive for CD20, kappa, lambda, and progesterone receptor; and negative for CD79-alpha, CD3, CD38, CD10, CD5, CD56, AE1/AE3, estrogen receptor, and C-erbB-2.