PMC6419545_01
Intratumoral arterioles showing angiodysplasia (H and E, x200)
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F1
Some intratumoral arterioles had myxoid changes of medial smooth muscle, characterizing angiodysplasia [Figure 1].
Proliferation of spindle cells with juxtaglomerular hyperplasia (H and E, x100)
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F2
The glomeruli showed juxtaglomerular hyperplasia [Figure 2].
Tumor cells are immunoreactive for CD34 around tubules forming a concentric "onion skin" rings (x100)
AJPS-15-50-g003.jpg
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F3
Immunohistochemically, tumor cells were diffusely immunoreactive for CD34, and there is no immunostaining with PS100, desmin, and cytokeratin [Figure 3].