PMC6526288_01
(H & E, original magnification 200x) Areas of both epithelioid and spindle cells within the tumor.
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PMC6526288_01_gr1.jpg
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Fig. 1. Focal areas of hyalinization and necrosis were seen.
(H & E, original magnification 400x) Area of increased nuclear pleomorphism and associated erythrocytes within vascular channels.
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PMC6526288_01_gr2.jpg
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In Fig. 2, microscopic analysis shows erythrocytes which can be visualized in the vascular channels.
CD31 membrane positivity, confirming endothelial cell differentiation.
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PMC6526288_01_gr3.jpg
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The positive histochemistry of CD31 is shown in Fig. 3.
Elastic stain highlighting residual elastic intima and lamina of embedded vessel, possibly representing original site of origin.
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PMC6526288_01_gr4.jpg
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SOX10, S100, and desmin. Shown in Fig. 4 is the elastic stain highlighting residual elastic intima and lamina of embedded vessel, possibly representing original site of origin.