Fig. 3
From: Primary intraosseous osteolytic meningioma: a case report and review of the literature
Histopathologic findings of atypical meningioma. The fragmented specimen (a) is seen as grayish-white solid masses. On microscopic examination, the tumor infiltrated the adjacent soft tissue (b, hematoxylin and eosin [H&E] stain, × 20, scale bar = 200 μm) and showed a whorled appearance and multifocal necrosis (c, H&E stain, × 100, scale bar = 100 μm). The tumor cells are composed of spindle cells with prominent nucleoli and ill-defined cytoplasm. Many mitoses are visible (d, H&E stain, × 400, scale bar = 20 μm)