case_images: PMC5312185_01
case_images: Blue-gray hard plaque with a hypochromic halo on the right breast
case_images: abd-92-01-0092-gf01.jpg
case_images: PMC5312185_01_abd-92-01-0092-gf01.jpg
case_images: f1
case_images: Dermatological examination revealed a blue-gray hard plaque with a hypochromic halo on the right breast (Figure 1).
case_images: Dermatoscopic examination revealed a homogeneous blue-gray area and
  collision of freckles at the periphery of the lesion
case_images: abd-92-01-0092-gf02.jpg
case_images: PMC5312185_01_abd-92-01-0092-gf02.jpg
case_images: f2
case_images: Dermoscopic examination showed only a blue-gray homogeneous pattern (Figure 2).
case_images: Histopathology: dermal involvement represented by the proliferation of
  cells, some showing brown pigmentation and other involving thickened
  collagen fibers (Hematoxylin & eosin x100)
case_images: abd-92-01-0092-gf03.jpg
case_images: PMC5312185_01_abd-92-01-0092-gf03.jpg
case_images: f3
case_images: Histological sections stained with hematoxylin-eosin showed epidermis with acanthosis and dermis with proliferation of elongated cells showing brown pigmentation or involving thickened collagen fibers (Figures 3 and 4).
case_images: High magnification: detail of the brown pigment retention by proliferated
  stellate cells. Dilated vessels filled with red blood cells in between
  stellate cells (Hematoxylin & eosin x400)
case_images: abd-92-01-0092-gf04.jpg
case_images: PMC5312185_01_abd-92-01-0092-gf04.jpg
case_images: f4
case_images: Histological sections stained with hematoxylin-eosin showed epidermis with acanthosis and dermis with proliferation of elongated cells showing brown pigmentation or involving thickened collagen fibers (Figures 3 and 4).
case_images: Perls' staining revealing bluish intracellular iron storage in the form
  of hemosiderin (Hematoxylin & eosin x100)
case_images: abd-92-01-0092-gf05.jpg
case_images: PMC5312185_01_abd-92-01-0092-gf05.jpg
case_images: f5
case_images: Perls' staining technique revealed blueness in correspondence to the brown pigment, compatible with hemosiderin (Figure 5).