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Histological findings. A : Hematoxylin and eosin staining revealed clusters and cords of epithelioid cells, abundant myxoid and mucinous stroma, well developed capillary network, mild nuclear pleomorphism, no mitosis, no vascular endothelial hyperplasia, and no necrosis (H & E,×100). B and C : Photographs of immunohistochemical stainings demonstrating diffuse cytoplasmic expression for glial fibrillary acidic protien (B) and vimentin (C) (×200).
