Figure 1.
(A) Invasive ductal carcinoma with a wide mucin-producing component (inside the red circle; scale bar: 100 μm). (B) Computed tomography scan shows multiple lung lesions (indicated by arrows). (C) and (D) Lung metastasis of HER2-positive (C, red arrow; scale bar: 100 μm) and Thyroid Transcription Factor-1-negative BC (D, scale bar: 100 μm) with colloid-producing phenotype (inside the red circle; scale bar: 100 μm)