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Fig. 3 | Eye and Vision

Fig. 3

From: Unusual occurrence of orbital hemangiopericytoma in the zygomatic bone of an adolescent: a case report

Fig. 3

Pathologic findings. Histopathologically (a and b), the tumor is composed of several slit-like vascular channels with occasional stag-horn appearing structures, surrounded by numerous spindle cells (H&E stain, low and high magnification, respectively). Immunohistochemistry shows positive staining for CD31 and CD34 in endothelial cells of blood vessels (c) and also positive staining for smooth muscle actin (SMA) in spindle cells (d)

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Eye and Vision

ISSN: 2326-0254