PMC3514799_01
Breast cutaneous nodule with purplish discoloration of the overlying skin.
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fig1
Clinical examination showed a nontender, firm, slightly raised 1 cm cutaneous nodule with purplish discoloration of the overlying skin (Figure 1).
Well-circumscribed tumor located in the deep dermis and the subcutaneous tissue.
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fig2
Microscopically, the tumor was well circumscribed, located in the deep dermis and the subcutaneous tissue (Figure 2), and was composed of multiple lobules of greatly dilated, thin walled ramifying and anastomosing vascular channels (Figure 3), demonstrating a characteristic sinusoidal appearance with area of pseudopapillary pattern (Figure 3).
Sinusoidal patterns and "back-to-back" arrangements with pseudopapillary growth.
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fig3
Microscopically, the tumor was well circumscribed, located in the deep dermis and the subcutaneous tissue (Figure 2), and was composed of multiple lobules of greatly dilated, thin walled ramifying and anastomosing vascular channels (Figure 3), demonstrating a characteristic sinusoidal appearance with area of pseudopapillary pattern (Figure 3).
Single layer of flattened endothelial cells without nuclear atypia or mitoses.
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fig4
Closely packed intercommunicating cavernous vessels filled with blood and lined by a single layer of flattened endothelial cells were observed (Figure 4).